JP6867761B2 - A metal complex and a method for producing the same, a catalyst component for olefin polymerization containing the metal complex, a catalyst for olefin polymerization, and a method for producing an α-olefin polymer using the catalyst for olefin polymerization. - Google Patents

Description

The present invention relates to a metal complex useful for producing an α-olefin polymer and a copolymer, and a method for producing a novel α-olefin polymer and a copolymer using the same.

Copolymers of α-olefins and polar group-containing monomers are industrially useful polymers. To obtain this copolymer by direct polymerization, a high-pressure radical method is usually used. However, this method has a drawback that it cannot polymerize higher α-olefins such as propylene. It is industrially difficult to obtain a copolymer other than the high-pressure radical method, and catalyst deactivation is unavoidable when a Ziegler catalyst or a metallocene catalyst is used.

After that, in the metallocene catalyst, the copolymerization of ethylene and methyl methacrylate became possible by the organic rare earth metal complex-based metallocene catalyst, and after the 1990s, the copolymerization of ethylene and the polar group-containing comonomer by the late cycle transition metal complex catalyst became possible. Copolymerization is being energetically studied. For example, the (α-diimine) palladium complex reported by Brookhard et al. And the (salicylic amidinate) nickel catalyst reported by Grubbs et al. Are known. When these catalysts are used, the productivity of the copolymer is low and the molecular weight is generally low because the polymerization temperature is lowered in order to suppress the frequent occurrence of chain transfer. In recent years, in the copolymerization of ethylene and a polar group-containing monomer, the above-mentioned problem is a (phosphorus sulfonate) palladium complex (see Patent Document 1) or a so-called SHOP-based catalyst (phosphorenelate) nickel complex (Patent Document 2-4). , Non-Patent Document 1-2), etc.

As described above, the (phosphorenolate) nickel complex has been useful as a copolymerization catalyst of ethylene and a polar group-containing monomer, but there has been no report on the copolymerization of an α-olefin and a polar group-containing monomer. It was.

Japanese Unexamined Patent Publication No. 2010-150246 International Publication No. 2010/050256 U.S. Pat. No. 6,559,326 Japanese Unexamined Patent Publication No. 2005-307021

J. Heinicke et al. , "Chem. Eur. J.", 2003, 9, 6093. J. Heinicke et al. , "European Journal of Inorganic Chemistry", 2000, 3, 431.

The subject of the present invention is a novel catalyst component having excellent polymerization activity, which is used for producing an α-olefin polymer and a copolymer, particularly a polymer having a high molecular weight, in view of the above-mentioned problems of the prior art, and a novel catalyst component thereof. It is an object of the present invention to provide a method for producing an α-olefin polymer and a copolymer using the above.

As a result of diligent studies to solve the above problems, the present inventors have found a transition metal complex having a novel phosphorus phenolate ligand structure different from the existing (phosphorenolate) transition metal complex, and have found an α-olefin. It was discovered that the homopolymerization of the above or copolymerization with a polar group-containing monomer is possible. Further, they have found that a (co) polymer having a higher molecular weight can be obtained by the present invention, and have completed the present invention.

That is, the present invention
[1] the following general formula [I] or a compound represented by [II], the production method of the metal complex comprising contacting a transition metal compound containing nickel or palladium.

［式［Ｉ］および式［ＩＩ］中のＲ^１〜Ｒ^６、Ｅ^１、Ｘ^１は以下の通りである。
Ｒ^２，Ｒ^３およびＲ^４は、水素原子を表す。
Ｒ^１は、下記（ｖ）および（ｖｉ）からなる群より選ばれる基を表す。
（ｖ）ヘテロ原子およびヘテロ原子を含有する基からなる群より選ばれる基を有する、炭素数６〜３０のアリール基、炭素数７〜３０のアリールアルキル基、または炭素数７〜３０のアルキルアリール基
（ｖｉ）Ｓｉ（ＯＲ^８）_３−ｘ（Ｒ^８）_ｘ、ここで、Ｒ^８は水素または炭素数１〜２０の炭化水素基を表し、ｘは０から３までの整数を表す。
Ｒ^５およびＲ^６は、それぞれ独立に、炭素数１〜６の直鎖状アルキル基、炭素数３〜６の分岐した非環状アルキル基、または炭素数２〜６のアルケニル基を表す。
Ｒ^５およびＲ^６が互いに連結し、脂環式環、または芳香族環を形成してもよい。このとき、環員数は５〜８であり、該環上に置換基を有していない。
Ｅ^１は、リン、砒素またはアンチモンを表す。
Ｘ^１は、酸素または硫黄を表す。
また、式［Ｉ］中、
Ｚは、水素、または脱離基を表し、
ｍはＺの価数を表す。］
［２］ 下記一般式［ＩＩＩ］で表されることを特徴とする金属錯体。

^{[R 1 to} R ⁶ , E ¹ , and X ¹ in the formula [I] and the formula [II] are as follows.
R ^{2, R 3} and ^{R 4} represents a hydrogen atom.
R ¹ represents a group selected from the group consisting of the following (v) and (vi).
(V) An aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or an alkylaryl having 7 to 30 carbon atoms having a group selected from the group consisting of a heteroatom and a group containing a heteroatom. Group (vi) Si (OR ⁸ ) _3-x (R ⁸ ) _x , where R ⁸ represents hydrogen or a hydrocarbon group having 1 to 20 carbon atoms, and x represents an integer from 0 to 3.
R ⁵ and R ⁶ independently represent a linear alkyl group having 1 to 6 carbon atoms, a branched acyclic alkyl group having 3 to 6 carbon atoms, or an alkenyl group having 2 to 6 carbon atoms.
R ⁵ and R ⁶ may be linked to each other to form an alicyclic ring or an aromatic ring. At this time, the number of ring members is 5 to 8, and there is no substituent on the ring.
E ¹ represents phosphorus, arsenic or antimony.
X ¹ represents oxygen or sulfur.
Also, in formula [I],
Z represents hydrogen, or a leaving group,
m represents the valence of Z. ]
[2] A metal complex represented by the following general formula [III].

［式［ＩＩＩ］中のＲ^１〜Ｒ^７、Ｅ^１、Ｘ^１、Ｍ、Ｌ^１は以下の通りである。
Ｒ^２，Ｒ^３およびＲ^４は、水素原子を表す。
Ｒ^１は、下記（ｖ）および（ｖｉ）からなる群より選ばれる基を表す。
（ｖ）ヘテロ原子およびヘテロ原子を含有する基からなる群より選ばれる基を有する、炭素数６〜３０のアリール基、炭素数７〜３０のアリールアルキル基、または炭素数７〜３０のアルキルアリール基
（ｖｉ）Ｓｉ（ＯＲ^８）_３−ｘ（Ｒ^８）_ｘ、ここで、Ｒ^８は水素または炭素数１〜２０の炭化水素基を表し、ｘは０から３までの整数を表す。
Ｒ^５およびＲ^６は、それぞれ独立に、炭素数１〜６の直鎖状アルキル基、炭素数３〜６の分岐した非環状アルキル基、または炭素数２〜６のアルケニル基を表す。
Ｒ^５およびＲ^６が互いに連結し、脂環式環、または芳香族環を形成してもよい。このとき、環員数は５〜８であり、該環上に置換基を有していない。
Ｅ^１は、リン、砒素またはアンチモンを表す。
Ｘ^１は、酸素または硫黄を表す。
Ｍは、ニッケルまたはパラジウムを表す。
Ｒ^７は、水素、またはヘテロ原子およびヘテロ原子を含有する基からなる群より選ばれる基を有していてもよい炭素数１〜２０の炭化水素基を表す。
Ｌ^１は、Ｍに配位したリガンドを表す。
Ｒ^７とＬ^１が互いに結合して環を形成してもよい。］
［３］ 前記Ｒ^１が、ヘテロ原子およびヘテロ原子を含有する基からなる群より選ばれる基を有する炭素数６〜３０のアリール基またはＳｉ（ＯＲ^８）_３−ｘ（Ｒ^８）_ｘであることを特徴とする［１］に記載の金属錯体の製造方法。
［４］ 前記Ｒ ^１ が、ヘテロ原子およびヘテロ原子を含有する基からなる群より選ばれる基を有する炭素数６〜３０のアリール基またはＳｉ（ＯＲ ^８ ） _３−ｘ （Ｒ ^８ ） _ｘ であることを特徴とする［２］に記載の金属錯体。
［５］ 前記Ｒ^１が、ペンタフルオロフェニル基、カルバゾリル基、トリメチルシリル基、又はトリエチルシリル基であることを特徴とする［１］または［３］に記載の金属錯体の製造方法。
［６］ 前記Ｒ ^１ が、ペンタフルオロフェニル基、カルバゾリル基、トリメチルシリル基、又はトリエチルシリル基であることを特徴とする［２］または［４］に記載の金属錯体。
［７］ 上記一般式［Ｉ］または［ＩＩ］で表される化合物と、ニッケルまたはパラジウムを含む遷移金属化合物とを接触させることにより、上記一般式［ＩＩＩ］で表される金属錯体を製造することを特徴とする金属錯体の製造方法。
［８］ ［１］、［３］または［５］に記載の金属錯体の製造方法を含むことを特徴とする、前記金属錯体を含むオレフィン重合用触媒成分の製造方法。
［９］ ［２］、［４］または［６］に記載の金属錯体を含むことを特徴とするオレフィン重合用触媒成分。
［１０］ 下記の成分（Ａ）及び（Ｂ）、更に必要に応じて（Ｃ）を含むことを特徴とする、オレフィン重合用触媒。
成分（Ａ）：［２］、［４］または［６］に記載の金属錯体
成分（Ｂ）：成分（Ａ）と反応してイオン対を形成する化合物またはイオン交換性層状珪酸塩
成分（Ｃ）：有機アルミニウム化合物
［１１］ 前記成分（Ｂ）がアルミノキサンであることを特徴とする［１０］に記載のオレフィン重合用触媒。
［１２］ ［１０］又は［１１］に記載の重合用触媒の存在下に、（ａ）α−オレフィンを重合または共重合することを特徴とするα−オレフィン重合体の製造方法。
［１３］ ［１０］又は［１１］に記載の重合用触媒の存在下に、（ａ）α−オレフィンと、（ｂ）（メタ）アクリル酸エステルモノマー、ビニルモノマーまたはアリルモノマーとを共重合することを特徴とするα−オレフィン共重合体の製造方法。

^{[R 1 to} R ⁷ , E ¹ , X ¹ , M, L ¹ in the formula [III] are as follows.
R ^{2, R 3} and ^{R 4} represents a hydrogen atom.
R ¹ represents a group selected from the group consisting of the following (v) and (vi).
(V) An aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or an alkylaryl having 7 to 30 carbon atoms having a group selected from the group consisting of a heteroatom and a group containing a heteroatom. Group (vi) Si (OR ⁸ ) _3-x (R ⁸ ) _x , where R ⁸ represents hydrogen or a hydrocarbon group having 1 to 20 carbon atoms, and x represents an integer from 0 to 3.
R ⁵ and R ⁶ independently represent a linear alkyl group having 1 to 6 carbon atoms, a branched acyclic alkyl group having 3 to 6 carbon atoms, or an alkenyl group having 2 to 6 carbon atoms.
R ⁵ and R ⁶ may be linked to each other to form an alicyclic ring or an aromatic ring. At this time, the number of ring members is 5 to 8, and there is no substituent on the ring.
E ¹ represents phosphorus, arsenic or antimony.
X ¹ represents oxygen or sulfur.
M represents nickel or palladium.
R ⁷ represents hydrogen, or a hydrocarbon group having 1 to 20 carbon atoms which may have a group selected from the group consisting of heteroatoms and groups containing heteroatoms.
L ¹ represents a ligand coordinated to M.
R ⁷ and L ¹ may be combined with each other to form a ring. ]
[3] the R ¹ is is an aryl group or ^Si having 6 to 30 carbon atoms having a group selected from the group consisting of radicals containing heteroatoms and heteroatom ^{_{(OR 8) 3-x (}} R 8) x method for producing a metal complex according to [1], wherein the.
[4] the ^{R 1} is is an aryl group or ^Si having 6 to 30 carbon atoms having a group selected from the group consisting of radicals containing heteroatoms and heteroatom _{^{(OR 8) 3-x (}} R 8) x The metal complex according to [2].
[5] The method for producing a metal complex according to [1] or [3] , wherein the R ¹ is a pentafluorophenyl group, a carbazolyl group, a trimethylsilyl group, or a triethylsilyl group.
[6] ^{The metal complex according to [2] or [4], wherein R 1} is a pentafluorophenyl group, a carbazolyl group, a trimethylsilyl group, or a triethylsilyl group.
[7] A metal complex represented by the general formula [III] is produced by contacting a compound represented by the general formula [I] or [II] with a transition metal compound containing nickel or palladium. A method for producing a metal complex.
[8] [1], [3] or [5], characterized in that it comprises a method for producing a metal complex body according to method of olefin polymerization catalyst component comprising the metal complex.
[9] A catalyst component for olefin polymerization, which comprises the metal complex according to [2], [4] or [6].
[10] A catalyst for olefin polymerization, which comprises the following components (A) and (B) and, if necessary, (C).
Component (A): Metal complex according to [2], [4] or [6] Component (B): Compound or ion-exchangeable layered silicate component (C) that reacts with component (A) to form an ion pair. ): Organoaluminium compound
[11] The catalyst for olefin polymerization according to [10 ], wherein the component (B) is an aluminoxane.
[12] A method for producing an α-olefin polymer, which comprises (a) polymerizing or copolymerizing an α-olefin in the presence of the polymerization catalyst according to [ 10 ] or [ 11].
[13] Copolymerize (a) α-olefin with (b) (meth) acrylic acid ester monomer, vinyl monomer or allyl monomer in the presence of the polymerization catalyst according to [ 10 ] or [ 11]. A method for producing an α-olefin copolymer.

INDUSTRIAL APPLICABILITY According to the present invention, an α-olefin homopolymer having a higher polymerization activity than the conventional one and a higher molecular weight can be obtained, and a copolymerization of an α-olefin and a polar group-containing monomer can be achieved with a good polymerization activity.

The present invention includes a compound represented by the general formula [I] or [II] and a transition metal belonging to Group 9, Group 10, or Group 11 of the periodic table such as nickel, palladium, cobalt, copper or rhodium. A reaction product obtained by contacting a compound, that is, a metal complex represented by the general formula [III] (hereinafter, also referred to as a metal complex [III]), and the catalyst component thereof. A method for producing (a) an α-olefin polymer or copolymer in the presence of a catalyst component, and (a) α-olefin and (b) (meth) acrylic acid ester monomer, vinyl monomer or allyl monomer. This is a method for producing a copolymer.
In the present invention, "polymerization" is a general term for homopolymerization of one type of monomer and copolymerization of a plurality of types of monomers, and when it is not necessary to distinguish between the two, the generic term is simply "polymerization". ". Further, in the present invention, the "(meth) acrylic acid ester" includes both an acrylic acid ester and a methacrylic acid ester.

1. 1. Metal Complex In the metal complex of the present invention, a compound represented by the following general formula [I] or [II] is brought into contact with a transition metal compound containing a transition metal belonging to Group 9, Group 10, or Group 11 of the periodic table. Obtained by

In the present invention, "contact" means that E ¹ in the general formula [I] or [II] can form a coordination bond with the transition metal and / or X ^{1 in} these general formulas is the above. A compound represented by these general formulas (hereinafter, these may be collectively referred to as a phosphorus phenolate compound) and the transition metal compound are sufficiently close to each other so that a single bond can be formed with the transition metal. Means that. Then, when the phosphorus phenolate compound and the transition metal compound are brought into contact with each other, these compounds are mixed so that these compounds are sufficiently close to each other and at least one of the above two types of bonds can be formed. Means that.
The conditions for mixing the phosphorus phenolate compound and the transition metal compound are not particularly limited. These compounds may be mixed directly or may be mixed using a solvent. In particular, it is preferable to use a solvent from the viewpoint of achieving uniform mixing.
Since the phosphorus phenolate compound serves as a ligand in the obtained metal complex, the reaction between the phosphorus phenolate compound and the transition metal compound is usually a ligand exchange reaction. When the obtained metal complex is thermodynamically more stable than the transition metal compound, a ligand exchange reaction is carried out by mixing the phosphorus phenolate compound and the transition metal compound at room temperature (15 to 30 ° C.). Progresses. On the other hand, when the obtained metal complex is thermodynamically more unstable than the transition metal compound, it is preferable to appropriately heat the mixture in order to sufficiently proceed the ligand exchange reaction.

A metal complex obtained by contacting a compound represented by the general formula [I] or [II] with a transition metal compound containing a transition metal belonging to Group 9, Group 10, or Group 11 of the periodic table will be described later. It is presumed to have the structure represented by the general formula [III].
However, the compound represented by the general formula [I] or [II] is a phosphorus phenolate compound, which is a bidentate ligand. When contacted with a transition metal compound containing a transition metal belonging to the above, a metal complex having a structure other than the structure represented by the general formula [III] may be formed. ^{For example, it is conceivable that only X 1} in the general formula [I] or [II] forms a bond with the transition metal, or ^{only E 1 in} these formulas forms a bond with the transition metal. Further, the metal complex represented by the general formula [III] is a 1: 1 reaction product of a phosphorus phenolate compound and a transition metal compound, and a reaction product having a composition ratio different depending on the type of the transition metal can be obtained. Is also possible. For example, two or more molecules of a phosphorus phenolate compound may form a complex with one transition metal, or one molecule of a phosphorus phenolate compound may react with two or more transition metals to synthesize a polynuclear complex. Conceivable.
In the present invention, such a metal complex having a structure other than the structure represented by the general formula [III] is used for producing an α-olefin (co) polymer, similarly to the metal complex represented by the general formula [III]. It does not deny that it is possible.

^{Hereinafter, R 1 to} R ⁶ , E ¹ , X ¹ in the formula [I] and the formula [II], and Z and m in the formula [I] will be described.
R ^{2, R 3} and ^{R 4} are each independently, (i) hydrogen, (ii) halogen, may have a group selected from the group consisting of radicals containing (iii) hetero atom and hetero atom Represents a specific group or (iv) heteroatom-containing substituent.
(Ii) Examples of the halogen include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Among these, a fluorine atom is preferable.
Examples of the heteroatom used in (iii) include oxygen, nitrogen, phosphorus, sulfur, selenium, silicon, halogen and boron. Of these heteroatoms, fluorine and chlorine are preferable.
Specific examples of the “heteroatom-containing group” used in (iii) include groups similar to the (iv) heteroatom-containing substituent described later. Examples of the "group containing a hetero atom" include an alkoxy group (OR ⁹ ) and an ester group (CO ₂ R ⁹ ). R ⁹ is as described later.
In the above ^(iii), the total number of carbon atoms of the substituent corresponding to R 2 to R ⁴ is preferably 1 to 30, more preferably from 2 to 25, more preferably from 4 to 20.
Based on the above, (iii) "a specific group that may have a group selected from the group consisting of a heteroatom and a group containing a heteroatom" is defined as (iii-A) directly having 1 to 30 carbon atoms. A chain alkyl group, a branched acyclic alkyl group having 3 to 30 carbon atoms, an alkenyl group having 2 to 30 carbon atoms, a cycloalkyl group which may have a side chain having 3 to 30 carbon atoms, and a cycloalkyl group having 6 to 30 carbon atoms. 30 aryl groups, 7 to 30 carbon atoms arylalkyl groups, and 7 to 30 carbon atoms alkylaryl groups, (iii-B) 1 or 2 or more heteroatoms in each of the above (iii-A) groups Substituent groups, (iii-C) groups in which each group of (iii-A) is substituted with one or more of the above "groups containing a heteroatom", and (iii-D) the above. (Iii-A) refers to a group in which the heteroatom is substituted by 1 or 2 or more, and the "group containing a heteroatom" is substituted by 1 or 2 or more. Examples of (iii-C) include an alkyl group substituted with an alkoxy group, an aryl group substituted with an ester group, and the like.
(Iv) Heteroatom-containing substituents are specifically OR ⁹ , CO ₂ R ⁹ , CO ₂ M', C (O) N (R ⁸ ) ₂ , C (O) R ⁹ , SR ⁹ , SO ₂ R ⁹ , SOR ⁹ , OSO ₂ R ⁹ , P (O) (OR ⁹ ) _2-y (R ⁸ ) _y , CN, NHR ⁹ , N (R ⁹ ) ₂ , Si (OR ⁸ ) _{3-x ^{(R 8) x, OSi (}} oR 8) 3-x (R 8) x, NO 2, SO 3 M ', PO 3 M' 2, P (O) (oR 2) 2 M ', and epoxy-containing groups Point to. Here, R ⁸ represents hydrogen or a hydrocarbon group having 1 to 20 carbon atoms. Further, R ⁹ represents a hydrocarbon group having 1 to 20 carbon atoms. M'represents an alkali metal, alkaline earth metal, ammonium, quaternary ammonium or phosphonium, x represents an integer from 0 to 3, and y represents an integer from 0 to 2.

R ^{2, R 3} and ^{R 4} are each independently, as preferred, (i) a hydrogen atom; (ii) a fluorine atom, a chlorine atom, a bromine atom; (iii) methyl group, an ethyl group, an isopropyl group, a butyl group , Phenyl group, trifluoromethyl group, pentafluorophenyl group, naphthyl group, anthracenyl group; (iv) methoxy group, ethoxy group, phenoxy group, nitrile group, trimethylsilyl group, triethylsilyl group, dimethylphenylsilyl group, trimethoxysilyl group Examples thereof include a group, a triethoxysilyl group, a trimethylsilyloxy group, a trimethoxysiloxy group, a cyclohexylamino group, sodium sulfonate, potassium sulfonate, sodium phosphate, potassium phosphate and the like.
Among these, particularly preferable ones include (i) hydrogen atom; (iii) t-butyl group, pentafluorophenyl group; (iv) methoxy group, trimethylsilyl group, trimethylsilyloxy group, cyclohexylamino group and the like. In particular, R ³ is preferably a linear alkyl group having 1 to 30 carbon atoms having a substituent containing hydrogen or a hetero atom, and R ³ is more preferably hydrogen.

R ¹ represents a specific group having a group selected from the group consisting of (v) heteroatoms and groups containing heteroatoms, or (vi) heteroatom-containing substituents.
(V) The specific group having a group selected from the group consisting of a hetero atom and a group containing a hetero atom is specifically a linear alkyl group having 1 to 30 carbon atoms and a linear alkyl group having 3 to 30 carbon atoms. A branched acyclic alkyl group, an alkenyl group having 2 to 30 carbon atoms, a cycloalkyl group which may have a side chain having 3 to 30 carbon atoms, an aryl group having 6 to 30 carbon atoms, and 7 to 30 carbon atoms. A hydrocarbon group selected from the group consisting of an arylalkyl group and an alkylaryl group having 7 to 30 carbon atoms is substituted with a substituent containing a hetero atom. Among these, R ¹ is preferably an aryl group having 6 to 30 carbon atoms and having a group selected from the group consisting of a hetero atom and a group containing a hetero atom.
The upper limit of the carbon number of each of the linear alkyl group, the branched acyclic alkyl group, the alkenyl group, the cycloalkyl group which may have a side chain, the aryl group, the arylalkyl group, and the alkylaryl group is preferable. Is 25, more preferably 20 and even more preferably 15.
The (vi) heteroatom-containing substituents are specifically OR ⁹ , CO ₂ R ⁹ , CO ₂ M', C (O) N (R ⁸ ) ₂ , C (O) R ⁹ , SR ⁹ , and so on. SO ₂ R ⁹ , SOR ⁹ , OSO ₂ R ⁹ , P (O) (OR ⁹ ) _2-y (R ⁸ ) _y , CN, NHR ⁹ , N (R ⁹ ) ₂ , Si (OR ⁸ ) _{3-x ^{(R 8) x, OSi (}} oR 8) 3-x (R 8) x, NO 2, SO 3 M ', PO 3 M' 2, P (O) (oR 2) 2 M ', and epoxy-containing groups Represents. Here, R ⁸ , R ⁹ , M', x, and y are the same as in the cases of ^{R 2 to} R ^{4 described above.} Among these, R ^{1 is preferably Si (OR 8} ) _3-x (R ⁸ ) _x .

R ¹ is more preferably (v) a trifluoromethyl group, a pentafluorophenyl group, a carbazolyl group; (vi) a methoxy group, an ethoxy group, a phenoxy group, a nitrile group, a trimethylsilyl group, a triethylsilyl group, a dimethylphenylsilyl group. Examples thereof include a group, a trimethoxysilyl group, a triethoxysilyl group, a trimethylsilyloxy group, a trimethoxysiloxy group, a cyclohexylamino group, sodium sulfonate, potassium sulfonate, sodium phosphate, potassium phosphate and the like.
Among these, particularly preferable ones include (v) pentafluorophenyl group, carbazolyl group; (vi) methoxy group, trimethylsilyl group, trimethylsilyloxy group, cyclohexylamino group and the like.

In addition, ^{a plurality of groups appropriately selected from R 1} , R ² , R ³ and R ⁴ are linked to each other to form a heteroatom selected from the group consisting of an alicyclic ring, an aromatic ring, or oxygen, nitrogen and sulfur. The containing heterocycle may be formed. At this time, the number of ring members is 5 to 8, and the ring may or may not have a substituent.
Further, ^{a plurality of groups contained in R 1} may be connected to each other to form a ring on ^{R 1.} The ^{same applies when any of R 2} , R ³ , or R ⁴ contains a plurality of groups.

R ⁵ and R ⁶ may each independently have a heteroatom and a group selected from the group consisting of groups containing a heteroatom, a linear alkyl group having 1 to 6 carbon atoms, and a linear alkyl group having 3 carbon atoms. Represents a branched acyclic alkyl group of ~ 6 or an alkenyl group having 2 to 6 carbon atoms.
R ⁵ and R ⁶ may be linked to each other to form an alicyclic ring, an aromatic ring, or a heterocycle containing a heteroatom selected from the group consisting of oxygen, nitrogen and sulfur. At this time, the number of ring members is 5 to 8, and the ring may or may not have a substituent.
R ⁵ and R ⁶ are in the vicinity of the metal M and interact with M sterically and / or electronically. In order to exert such an effect, it is preferable ^{that R 5} and R ^{6 are bulky.}
Specific examples of preferred R ⁵ and R ⁶ include isobutyl group, t-butyl group, cyclohexyl group, neopentyl group, pentane-3-yl group and the like. Of these, the t-butyl group is more preferable.

Heteroatoms used for R ⁵ and R ⁶ include oxygen, nitrogen, phosphorus, sulfur, selenium, silicon, halogens and boron. Of these heteroatoms, fluorine and chlorine are preferable. Examples of the group containing these hetero atoms include an alkoxy group, an aryloxy group, an acyl group and an ester group as oxygen-containing groups, and an amino group and an amide group as nitrogen-containing groups and sulfur-containing groups. Examples of the thioalkoxy group and thioaryloxy include a phosphino group as a phosphorus-containing substituent, a selenyl group as a selenium-containing group, and a trialkylsilyl group as a silicon-containing group. Examples thereof include a dialkylarylsilyl group and an alkyldiarylsilyl group. Examples of the fluorine-containing group include a fluoroalkyl group and a fluoroaryl group, and examples of the boron-containing group include an alkylboron group and an arylboron group. Of these heteroatom-containing groups, the most preferred is an alkoxy group or an aryloxy group.

As the heteroatom contained in the heteroatom-containing group described above, one capable of coordinating with the transition metal is preferable. Specific examples of the heteroatom-containing group containing a heteroatom that can be coordinated to such a transition metal include the following.
That is, as the oxygen-containing group, an alkoxy group such as a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group, an n-butoxy group or a t-butoxy group, a phenoxy group, a p-methylphenoxy group and a p-methoxyphenoxy group. Examples thereof include an acyl group such as an aryloxy group, an acetyl group and a benzoyl group, an ester group such as an acetoxy group, a carboxyethyl group, a carboxyt-butyl group and a carboxyphenyl group. Examples of the nitrogen-containing group include a dialkylamino group such as a dimethylamino group, a diethylamino group, a di-n-propylamino group and a cyclohexylamino group. Examples of the sulfur-containing group include thioalkoxy groups such as thiomethoxy group, thioethoxy group, thio-n-propoxy group, thioisopropoxy group, thio-n-butoxy group, thio-t-butoxy group and thiophenoxy group, and p-methylthio. Examples thereof include a thioaryroxy group such as a phenoxy group and a p-methoxythiophenoxy group. Examples of the phosphorus-containing substituent include a dialkylphosphino group such as a dimethylphosphino group, a diethylphosphino group, a di-n-propylphosphino group, and a cyclohexylphosphino group. Examples of the selenium-containing group include a serenyl group such as a methylselenyl group, an ethylserenyl group, an n-propylserenyl group, an n-butylserenyl group, a t-butylserenyl group and a phenylserenyl group.

E ¹ represents phosphorus, arsenic or antimony. Of these, E ¹ is preferably phosphorus.
X ¹ represents oxygen or sulfur. Of these, X ¹ is preferably oxygen.
Z represents hydrogen or a leaving group. Specific examples of Z include a hydrogen atom, _two ^{R 9} SO groups (where R ⁹ is as described above), _{two CF 3} SO groups, and the like.
m represents the valence of Z.

Although the general formula [II] is expressed in the form of an anion, any counter cation can be used as long as it does not inhibit the reaction with the transition metal compound in the present invention. Specific examples of the counter cation include ammonium, quaternary ammonium or phosphonium, and metal ions of Groups 1 to 14 of the periodic table. Of these, NH ₄ ⁺ , R ⁹ ₄ N ⁺ (where R ⁹ is as described above, and the four R ^9s may be the same or different; the same shall apply hereinafter), R. ⁹ ₄ P ⁺ , Li ⁺ , Na ⁺ , K ⁺ , Mg ²⁺ , Ca ²⁺ , Al ³⁺ , more preferably R ⁹ ₄ N ⁺ , Li ⁺ , Na ⁺ , K ⁺ .

Specific combinations of substituents and the like in the above general formulas [I] and [II] in the present invention are shown in Table 1 below. Z and m relate only to the general formula [I]. However, specific examples are not limited to the following examples.

In order to understand the structure of the compound, the structural formulas and names of the compound 1 shown in Table 1 above are shown. The compound having this structural formula is referred to as 2- (di-t-butylphosphanyl) -6-pentafluorophenylphenol.

The compounds represented by the general formulas [I] and [II] can be synthesized based on known synthetic methods.

In the reaction product of the compound represented by the general formula [I] or [II] and the transition metal compound containing the transition metal belonging to Group 9, Group 10, or Group 11 of the periodic table, the following general formula [III] is included. ], The metal complex of the present invention is included. However, as described above, the structure of the metal complex obtained by the production method is not limited to the structure represented by the general formula [III].

In the above general formula [III], R ^{1 to} R ⁶ , E ¹ , and X ¹ are as described above. As described above, between the metal complex in the reaction product and the metal complex represented by the general formula [III], a main skeleton containing a benzene ring and these substituents (R ^{1 to} R ⁶ , E ¹ , E 1, There is a commonality of complex structures in terms of X ^{1).
Hereinafter, M, R 7} , and L ¹ in the general formula [III] will be described.
In the present invention, M is a transition metal belonging to Group 9, Group 10, or Group 11 of the periodic table. M is preferably Group 10 nickel, palladium, platinum and Group 9 cobalt, rhodium and Group 11 copper, more preferably Group 10 nickel, palladium, platinum, and most preferably Group 10. Nickel or palladium.
The valence of M is preferably divalent. Here, the valence of M means a formal oxidation number used in organometallic chemistry. That is, when an electron pair in a bond involving an element is assigned to an element having a high electronegativity, it refers to the number of charges remaining on the atom of that element. For example, in the general formula [III] of the present invention, E ¹ is phosphorus, X ¹ is oxygen, M is nickel, R ⁷ is a phenyl group, L ¹ is pyridine, and nickel is phosphorus, oxygen, and phenyl group carbon. When a bond is formed with nitrogen of pyridine, the formal oxidation number of nickel, that is, the valence of nickel, is divalent. Because, based on the above definition, in these bonds, the electron pair is assigned to phosphorus, oxygen, carbon, nitrogen, which have a higher electronegativity than nickel, and the charges are 0 for phosphorus, -1, for oxygen, and phenyl. This is because the group is -1, the pyridine is 0, and the complex is electrically neutral as a whole, so that the charge remaining on nickel is +2.
As the divalent transition metal, for example, nickel (II), palladium (II), platinum (II) and cobalt (II) are preferable, and other than divalent, copper (I) or rhodium (III) is also preferable.

In the present invention, R ⁷ represents a hydrocarbon group having 1 to 20 carbon atoms which may have a hydrogen atom or a group selected from the group consisting of a hetero atom and a group containing a hetero atom. The polymerization or copolymerization reaction in the present invention is considered to be initiated by inserting the component (a) or the component (b) in the present invention into the bond ^{between M and R 7.} Therefore, the number of carbon atoms of R ⁷ is excessively large, there is a tendency that the initiation reaction is inhibited. Therefore, ^{as R 7} , the number of carbon atoms excluding the number of carbon atoms contained in the substituent is 1 to 16, and more preferably the number of carbon atoms is 1 to 10.
Specific examples of R ⁷ include hydride group, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, n-hexyl group, n-octyl group and n-decyl group. Examples thereof include an n-dodecyl group, a cyclopentyl group, a cyclohexyl group, a benzyl group, a phenyl group, a p-methylphenyl group, a trimethylsilyl group, a triethylsilyl group, a triphenylsilyl group and the like.

In the present invention, L ¹ represents a ligand coordinated with M. Ligand L ¹ in the present invention, as coordination bondable atom, an oxygen, nitrogen, a hydrocarbon compound having 1 to 20 carbon atoms having a sulfur. Further, as L ¹ , a hydrocarbon compound having a carbon-carbon unsaturated bond that can be coordinated to the transition metal (which may contain a hetero atom) can also be used. Preferably, L ¹ has 1 to 16 carbon atoms, and more preferably 1 to 10 carbon atoms. ^{Further, as L 1} to coordinate-bond with M in the general formula [III], a compound having no electric charge is preferable.

Preferred L ¹ in the present invention, cyclic unsaturated hydrocarbons, phosphines, pyridines, piperidines, alkyl ethers, aryl ethers, alkylaryl ethers, cyclic ethers, alkyl nitriles derivatives, aryl nitrile derivatives, Examples thereof include alcohols, amides, aliphatic esters, aromatic esters, amines and the like. Further preferable L ¹ includes cyclic olefins, phosphines, pyridines, cyclic ethers, aliphatic esters and aromatic esters, and particularly preferable L ¹ is trialkylphosphine, pyridine and lutidine (dimethylpyridine). ), Picoline (methylpyrididine), R ⁹ CO ₂ R ⁸ ( ^{the definitions of R 8} and R ⁹ are as described above).
In addition, R ⁷ and L ¹ may be bonded to each other to form a ring. An example of such is the cycloocta-1-enyl group, which is also a preferred mode in the present invention.

Specific combinations of substituents and the like in the above general formula [III] in the present invention are shown in Table 2 below. However, specific examples are not limited to the following examples.

In order to understand the structure of the metal complex, the structural formulas and names of the complex 1b shown in Table 2 above are shown. The compound of this structural formula is referred to as (2- (di-t-butylphosphanyl) -6-pentafluorophenylphenolate) phenyl (triethylphosphine) nickel (II).

Further, a compound in which the central metal M of each of the compounds illustrated in Table 2 is replaced with palladium instead of nickel is also exemplified.

As the transition metal compound used in the present invention, a compound capable of reacting with a compound represented by the general formula [I] or [II] to form a complex having a polymerizable ability is used. These are sometimes also called precursors.
For example, as a transition metal compound containing nickel, a complex represented by bis (1,5-cyclooctadiene) nickel (0), general formula: Ni (CH ₂ CR ¹³ CH ₂ ) ₂ ^{[where R 13} is , Hydrocarbon groups with 1 to 30 carbon atoms which may contain hydrogen atoms, halogen atoms, heteroatoms, OR ⁸ , CO ₂ R ⁸ , CO ₂ M', C (O) N (R ⁹ ) ₂ , C (O) R ⁸ , SR ⁸ , SO ₂ R ⁸ , SOR ⁸ , OSO ₂ R ⁸ , P (O) (OR ⁸ ) _2-y (R ⁹ ) _y , CN, NHR ⁸ , N (R ⁸ ) ^{_{2, Si (OR 9) 3}} -x (R 9) x, OSi (OR 9) 3-x (R 9) x, NO 2, SO 3 M ', PO 3 M' 2, P (O) (OR ⁸ ) ₂ M'or an epoxy-containing group (where R ⁸ represents a hydrocarbon group having 1 to 20 carbon atoms and R ⁹ represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms. M'represents an alkali metal, an alkaline earth metal, ammonium, a quaternary ammonium or a phosphonium, x represents an integer of 0 to 3, and y represents an integer of 0 to 2). ], Bis (cyclopentadienyl) nickel (II), the general ^{_{formula: Ni (CH 2 SiR 13 3}} ) 2 L 1 2 in complex represented (wherein ^R 13, ^{L 1} is as described above. ), the general ^formula:. _NiR 13 ^{₂ L} ₁ ² in complex represented (wherein ^R 13, ^{L 1} are as described above), or the like can be used.
Further, for the transition metal compound containing the transition metal of Group 9, Group 10, or Group 11, the general formula: MR ¹³ _p L ¹ _q (where M is a transition metal of Group 9, Group 10, or Group 11). , R ¹³ and L ¹ are as described herein, and p and q are integers greater than or equal to 0 that satisfy the valence of M).

Among these transition metal compounds, those preferably used are nickel (0) bis (1,5-cyclooctadiene), NiPhCl (Pet ₃ ) ₂ , NiPhCl (PPh ₃ ) _2, NiPhCl (TMEDA) (hereinafter, hereafter. TMEDA represents tetramethylethylenediamine), general formula: Ni (CH ₂ CR ¹³ CH ₂ ) complex represented by a complex represented by ₂ ^{(where R 13} is as described above), general formula: ^{_{Ni (CH 2 SiR 13 3)}} 2 L 1 2 in complex represented (wherein ^R 13, ^{L 1} is as defined above.), the general ^formula: _NiR 13 ^{₂ L} ₁ ² in complex represented (here R ¹³ and L ¹ are as described above), Pd (dba) ₂ , Pd ₂ (dba) ₃ , Pd ₃ (dba) ₄ (where dba represents dibenzylideneacetone), Pd (OCOCH ₃ ) ₂ , (1,5-cyclooctadiene) Pd (methyl) (chloride).
Particularly preferred are nickel (0) bis (1,5-cyclooctadiene), NiPhCl (Pet ₃ ) ₂ , NiPhCl (PPh ₃ ) _2, NiPhCl (TMEDA), Ni (CH ₂ CHCH _{2 ) 2} , Ni (CH). ₂ CMeCH ₂ ) ₂ , Ni (CH ₂ SiMe ₃ ) ₂ (Py) ₂ (hereinafter Py stands for pyridine), Ni (CH ₂ SiMe ₃ ) ₂ (Lut) ₂ (hereinafter Lut is 2,6-- Represents rutidin.), NiPh ₂ (Py) ₂ , NiPh ₂ (Lut) ₂ , Pd (dba) ₂ , Pd ₂ (dba) ₃ , Pd ₃ (dba) ₄ (where dba is dibenzylideneacetone.) Represented), Pd (OCOCH ₃ ) ₂ , (1,5-cyclooctadiene) Pd (methyl) (chloride).

The reaction product of the present invention comprises the above-mentioned compound represented by the general formula [I] or [II] and the above-mentioned transition metal compound [IV], for example, [I] + [II]: [IV] = 1. : 99 to 99: 1 (molar ratio) can be obtained by contacting the mixture in an organic solvent such as toluene or benzene at 0 to 100 ° C. for 1 to 86400 seconds under reduced pressure to pressurized pressure. When a toluene or benzene solution of bis (1,5-cyclooctadiene) nickel (0) (Ni (COD) ₂ ) is used as the transition metal compound, the color of the solution changes from yellow to, for example, red. Therefore, the formation of the reaction product can be confirmed.

After this reaction, the components constituting the transition metal compound other than the transition metal in the compound are replaced with the portion of the general formula [I] excluding Z or the compound of the general formula [II]. Then, a metal complex represented by the general formula [III] of the present invention is produced. It is preferable that this substitution reaction proceeds quantitatively, but in some cases, it does not have to proceed completely. After completion of the reaction, in addition to the complex represented by the general formula [III], other components derived from the general formulas [I], [II] and the transition metal compound coexist, but the polymerization reaction or copolymerization reaction of the present invention is carried out. These other components may or may not be removed in doing so. In general, it is preferable to remove these other components because high activity can be obtained.
Note that for the reaction may be allowed to coexist L ¹ according to the present invention. As M according to the present invention, when a nickel or palladium, may by the coexistence of L ¹ Lewis basic in the system, stability of the complex of the purified formula [III] is increased, in such a case, as long as the L ¹ does not inhibit the polymerization reaction or copolymerization reaction of the present invention, it is preferable to coexist L ^1.

In the present invention, the reaction is carried out in a container different from the reactor used for the polymerization of the α-olefin or the copolymerization of the α-olefin and the (meth) acrylic acid ester, and the general formula is obtained. The complex of III] may be subjected to polymerization of α-olefin or copolymerization of α-olefin and (meth) acrylic acid ester, or the reaction may be carried out in the presence of these monomers. Further, the reaction may be carried out in a reactor used for polymerization of α-olefin or copolymerization of α-olefin and (meth) acrylic acid ester. At this time, these monomers may or may not be present. Further, for the components represented by the general formulas [I] and [II], a single component may be used, or a plurality of types of components may be used in combination. In particular, the combined use of these plurality of types is useful for the purpose of expanding the molecular weight distribution and the comonomer content distribution.

2. Method for Producing Metal Complex In the method for producing a metal complex, as described above, a compound represented by the general formula [I] or [II] and a transition metal belonging to Group 9, Group 10, or Group 11 of the periodic table are used. By contacting the containing transition metal compound, a metal complex represented by the general formula [III] can be produced.

3. 3. Olefin Polymerization Catalyst Component The olefin polymerization catalyst component of the present invention is characterized by containing the above-mentioned metal complex or the metal complex obtained by the above-mentioned production method.
In the present invention, the metal complex represented by the general formula [III] can be used as a catalyst component for polymerization or copolymerization. As described above, the metal complex represented by the general formula [III] can be formed by the reaction of the general formula [I] or [II] with the transition metal complex component. When the metal complex represented by the general formula [III] is used as a catalyst component, an isolated one may be used, or one supported on a carrier may be used. In a reactor used for the polymerization of such a supported α-olefin or the copolymerization of an α-olefin and a (meth) acrylic acid ester, the reaction may be carried out in the presence or absence of these monomers, or the reactor. It may be carried out in a separate container.

As the carrier that can be used, any carrier can be used as long as the gist of the present invention is not impaired. In general, inorganic oxides and polymer carriers can be preferably used. Specific examples thereof include SiO ₂ , Al ₂ O ₃ , MgO, ZrO ₂ , TiO ₂ , B ₂ O ₃ , CaO, ZnO, BaO, ThO _2, etc. or a mixture thereof, and SiO ₂ −Al ₂ O ₃ , SiO _2- V ₂ O ₅ , SiO _2- TIO ₂ , SiO _2- MgO, SiO _2- Cr ₂ O _3, etc. mixed oxides can also be used, and inorganic silicates, polyethylene carriers, polypropylene carriers, etc. Polystyrene carriers, polyacrylic acid carriers, polymethacrylic acid carriers, polyacrylic acid ester carriers, polyester carriers, polyamide carriers, polyimide carriers and the like can be used. As for these carriers, the particle size, particle size distribution, pore volume, specific surface area and the like are not particularly limited, and any carrier can be used.

As the inorganic silicate, clay, clay mineral, zeolite, diatomaceous earth and the like can be used. These may be synthetic products or naturally occurring minerals. Specific examples of clay and clay minerals include allophen groups such as allophen, kaolin groups such as dikite, nacrite, kaolinite and anokisite, halosite groups such as metahaloisite and halosite, and serpentine such as chrysotile, lizardite and antigolite. Smectite such as stones, montmorillonite, sauconite, baidelite, nontronite, saponite, hectrite, vermiculite minerals such as vermiculite, mica minerals such as illite, serpentine, seagreen stone, attapargit, sepiolite, paigolskite, bentonite, wood section Examples include clay, gairome clay, hisingelite, vermiculite, and rhokuday stones. These may form a mixed layer. Examples of the artificial compound include synthetic mica, synthetic hectorite, synthetic saponite, synthetic teniolite and the like. Of these specific examples, preferred are kaolins such as dikite, nacrite, kaolinite and anokisite, halosites such as metahalosite and halosite, vermiculite such as chrysotile, lysardite and antigolite, and montmorillonite. Examples include smectites such as zauconite, biderite, nontronite, saponite and hectorite, vermiculite minerals such as vermiculite, mica minerals such as illite, serpentine and seagreen stone, synthetic mica, synthetic hectorite, synthetic saponite and synthetic teniolite. Particularly preferred are smectites such as montmorillonite, zauconite, biderite, nontronite, saponite and hectorite, vermiculite minerals such as vermiculite, synthetic mica, synthetic hectorite, synthetic saponite and synthetic teniolite.

These carriers may be used as they are, but may be treated with acid such as hydrochloric acid, nitrate, sulfuric acid, etc. and / or LiCl, NaCl, KCl, CaCl ₂ , MgCl ₂ , Li ₂ SO ₄ , STRUCT ₄ , ZnSO ₄ , Ti ( Salt treatment such as SO ₄ ) ₂ , Zr (SO ₄ ) ₂ , Al ₂ (SO ₄ ) _{3 may be performed.} In the treatment, the corresponding acid and base may be mixed to form a salt in the reaction system for the treatment. Further, shape control such as crushing and granulation and drying treatment may be performed.

4. Olefin Polymerization Catalyst The olefin polymerization catalyst of the present invention is characterized by containing the following components (A) and (B), and if necessary, (C).
Component (A): The above-mentioned metal complex or the metal complex obtained by the above-mentioned production method Component (B): A compound or an ion-exchangeable layered silicate that reacts with the component (A) to form an ion pair Component (C): Organic Aluminum compound

The component (A) is the above-mentioned metal complex or the metal complex obtained by the above-mentioned production method, and only one kind of metal complex may be used, or two or more kinds of metal complexes may be used in combination.

One of the components (B) is an organoaluminum oxy compound. The organoaluminum oxy compound has an Al—O—Al bond in the molecule, and the number of the bonds is usually in the range of 1 to 100, preferably 1 to 50. Such an organoaluminum oxy compound is usually a product obtained by reacting an organoaluminum compound with water.
The reaction between organoaluminum and water is usually carried out in an inert hydrocarbon (solvent). As the inert hydrocarbon, aliphatic hydrocarbons such as pentane, hexane, heptane, cyclohexane, methylcyclohexane, benzene, toluene and xylene, alicyclic hydrocarbons and aromatic hydrocarbons can be used, but aliphatic hydrocarbons or It is preferable to use aromatic hydrocarbons.

As the organoaluminum compound used for preparing the organoaluminum oxy compound, any compound represented by the following general formula can be used, but trialkylaluminum is preferably used.
(R ^x ) _t Al (X ³ ) _(3-t)
(In the general formula, R ^x represents a hydrocarbon group having 1 to 18 carbon atoms, preferably 1 to 12 carbon atoms, an alkenyl group, an aryl group, an aralkyl group, etc., and X ³ represents a hydrogen atom or a halogen atom. Shown, t indicates an integer of 1 ≦ t ≦ 3.)
The alkyl group of trialkylaluminum may be any of a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a pentyl group, a hexyl group, an octyl group, a decyl group, a dodecyl group, etc. , Isobutyl group is preferable, and methyl group is particularly preferable. Two or more kinds of the above-mentioned organoaluminum compounds can be mixed and used.

The reaction ratio (water / Al molar ratio) of water to the organoaluminum compound is preferably 0.25 / 1 to 1.2 / 1, particularly 0.5 / 1-1 / 1, and the reaction temperature is , Usually in the range of −70 to 100 ° C., preferably in the range of −20 to 20 ° C. The reaction time is usually selected in the range of 5 minutes to 24 hours, preferably 10 minutes to 5 hours. As the water required for the reaction, not only water but also water of crystallization contained in copper sulfate hydrate, aluminum sulfate hydrate and the like, and components capable of producing water in the reaction system can be used.
Among the above-mentioned organoaluminum oxy compounds, those obtained by reacting alkylaluminum with water are usually called aluminoxane, and in particular, methylaluminoxane (including those substantially composed of methylaluminoxane (MAO)). Is suitable as an organoaluminum oxy compound. Solid dry methylaluminoxane (DMAO) obtained by distilling off the MAO solution is also suitable.
Of course, as the organoaluminum oxy compound, two or more of the above-mentioned organoaluminum oxy compounds can be used in combination, and a solution obtained by dissolving or dispersing the above-mentioned organoaluminum oxy compound in the above-mentioned inert hydrocarbon solvent. May be used.

Moreover, as a specific example of the component (B), an ion-exchangeable layered silicate can be mentioned. The ion-exchangeable layered silicate (hereinafter, may be simply abbreviated as "silicate") has a crystal structure in which surfaces formed by ionic bonds and the like are stacked in parallel by a binding force, and is contained. A silicate compound in which the ions to be exchanged are exchangeable. Various known silicates are known, and specifically, they are described in "Clay Mineralogy" by Haruo Shiramizu, Asakura Shoten (1995).
In the present invention, those preferably used as the component (B) belong to the smectite group, and specific examples thereof include montmorillonite, saponite, byderite, nontronite, saponite, hectorite, and stevensite. Of these, montmorillonite is preferable from the viewpoint of increasing the polymerization activity and molecular weight of the copolymer portion.

Since most silicates are naturally produced mainly as the main component of clay minerals, they often contain impurities (quartz, cristobalite, etc.) other than ion-exchangeable layered silicates, and are used in the present invention. The smectite silicates used may contain impurities.
The silicate may be acid-treated and / or salt-treated. In the treatment, the corresponding acid and base may be mixed to generate a salt in the reaction system for the treatment.

As the component (B), a mixture of the above-mentioned organoaluminum oxy compound and an ion-exchangeable layered silicate can also be used. Further, each of them may be used alone or in combination of two or more.

An example of the organoaluminum compound used as the component (C) is represented by the following general formula.
Al (R ^p ) _a X _(3-a)
In the general formula, R ^p represents a hydrocarbon group having 1 to 20 carbon atoms, X represents a hydrogen, a halogen, an alkoxy group or a siloxy group, and a represents a number greater than 0 and 3 or less.
Specific examples of the organoaluminum compound represented by the general formula include trialkylaluminum such as trimethylaluminum, triethylaluminum, tripropylaluminum, and triisobutylaluminum, and halogen or alkoxy such as diethylaluminum monochloride and diethylaluminum monomethoxyde. Alkyl aluminum can be mentioned.

Of these, triisobutylaluminum is preferred. Further, two or more kinds of the above-mentioned organoaluminum compounds may be used in combination. Further, the above aluminum compound may be modified with alcohol, phenol or the like before use. Examples of these denaturants include methanol, ethanol, 1-propanol, isopropanol, butanol, phenol, 2,6-dimethylphenol, 2,6-di-t-butylphenol, and the like, with preferred specific examples being 2,6. -Dimethylphenol, 2,6-di-t-butylphenol.

In the method for preparing the catalyst for olefin polymerization according to the present invention, the method of contacting the components (A), (B) and, if necessary, (C) is not particularly limited, but the following methods are exemplified. be able to.

(I) Method of adding component (C) after contacting component (A) and component (B) (ii) After contacting component (A) and component (C), component (B) Method of adding component (iii) After contacting component (B) and component (C), method of adding component (A) (iv) Contacting each component (A), (B), (C) at the same time How to make it.
Further, different kinds of components may be used as a mixture in each component, or they may be contacted separately in a different order. This contact may be performed not only at the time of catalyst preparation but also at the time of prepolymerization with an olefin or the polymerization of an olefin.
Alternatively, the components may be divided and brought into contact with each component, such as adding a mixture of the component (A) and the component (C) after contacting the component (B) and the component (C).
The contacts of the above components (A), (B) and (C) are preferably carried out in an inert gas such as nitrogen in an inert hydrocarbon solvent such as pentane, hexane, heptane, toluene and xylene. The contact can be carried out at a temperature between −20 ° C. and the boiling point of the solvent, and is particularly preferably carried out at a temperature between room temperature and the boiling point of the solvent.

5. Method for Producing α-olefin Polymer In one embodiment of the method for producing an α-olefin polymer of the present invention, (a) α-olefin is polymerized or copolymerized in the presence of the above-mentioned polymerization catalyst.
The component (a) in the present invention is an α-olefin represented by the _{general formula: CH 2} = CHR ^10. Here, R ¹⁰ is a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, and may have a branched, ring, and / or unsaturated bond. When the ^{number of carbon atoms of R 10} is larger than 20, sufficient polymerization activity tends not to be exhibited. Therefore, among them, the preferable component (a) ^{is α-olefin in which R 10} is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms.
Further preferable components (a) include ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-decene, 3-methyl-1-butene, 4-methyl-1-pentene and vinyl. Cyclohexene and styrene can be mentioned. In addition, a single component (a) may be used, or a plurality of components (a) may be used in combination.

Another embodiment of the method for producing an α-olefin polymer of the present invention comprises (a) α-olefin and (b) (meth) acrylic acid ester monomer, vinyl monomer or allyl in the presence of the above-mentioned polymerization catalyst. It is copolymerized with a monomer.

The (meth) acrylic acid ester monomer in the present invention is represented by the general formula: CH ₂ = C (R ¹¹ ) CO ₂ (R ¹² ). Here, R ¹¹ is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, and may have a branched, ring, and / or unsaturated bond. R ¹² is a hydrocarbon group having 1 to 30 carbon atoms and may have a branched, ring, and / or unsaturated bond. Further, a hetero atom may be contained at an arbitrary position in ^{R 12.}
When the ^{number of carbon atoms of R 11} is 11 or more, sufficient polymerization activity tends not to be exhibited. Therefore, R ¹¹ is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, and a preferable (meth) acrylic acid ester is one in which R ¹¹ is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms. Can be mentioned. More preferable (meth) acrylic acid ester monomers include methacrylic acid ester in which ^{R 11} is a methyl group or acrylic acid ester in which ^{R 11 is a hydrogen atom.} Similarly, when the ^{number of carbon atoms of R 12} exceeds 30, the polymerization activity tends to decrease. Therefore, R ¹² has 1 to 30 carbon atoms, but R ¹² preferably has 1 to 12 carbon atoms, and more preferably 1 to 8 carbon atoms.
Examples of the heteroatom that may be contained in R ¹² include oxygen, sulfur, selenium, phosphorus, nitrogen, silicon, fluorine, and boron. Of these heteroatoms, oxygen, silicon and fluorine are preferred, and oxygen is even more preferred. Further, R ¹² preferably does not contain a hetero atom.

More preferable (meth) acrylic acid ester monomers include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, and n-butyl (meth) acrylate. , (Meta) isobutyl acrylate, (meth) t-butyl acrylate, (meth) pentyl acrylate, hexyl (meth) acrylate, cyclohexyl (meth) acrylate, octyl (meth) acrylate, (meth) acrylate 2-Ethylhexyl, nonyl (meth) acrylate, decyl (meth) acrylate, dodecyl (meth) acrylate, phenyl (meth) acrylate, toluyl (meth) acrylate, benzyl (meth) acrylate, (meth) acrylic Hydroxyethyl acid, dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, -2-aminoethyl (meth) acrylate, -2-methoxyethyl (meth) acrylate, -3 (meth) acrylate − Methoxypropyl, glycidyl (meth) acrylate, ethylene oxide (meth) acrylate, trifluoromethyl (meth) acrylate, -2-trifluoromethylethyl (meth) acrylate, perfluoroethyl (meth) acrylate, Examples thereof include (meth) acrylamide, (meth) acrylic dimethylamide, 2-hydroxybutyl (meth) acrylate, and 4-hydroxybutyl (meth) acrylate. A single (meth) acrylic acid ester may be used, or a plurality of (meth) acrylic acid esters may be used in combination.

The vinyl monomer in the present invention is a vinyl monomer having a polar group such as halogen-containing, nitrogen-containing, oxygen-containing, and sulfur-containing, and in particular, a halogen, a hydroxyl group, an amino group, a nitro group, a carboxyl group, a formyl group, an ester group, and an epoxy group. , A vinyl monomer containing a nitrile group and the like. Specifically, 5-hexene-1-ol, 2-methyl-3-butene-1-ol, ethyl 10-undecenoate, 10-undecene-1-ol, 12-tridecene-2-ol, 10-undecanoic. Acid, methyl-9-deceneate, t-butyl-10-undeceneate, 1,1-dimethyl-2-propen-1-ol, 9-decene-1-ol, 3-butenoic acid, 3-buten-1-ol , N- (3-Butene-1-yl) phthalimide, 5-hexenoic acid, methyl 5-hexeneate, 5-hexene-2-one, acrylonitrile, methacrylonitrile, vinyl acetate, triethoxyvinylsilane and the like. Of these, 3-butene-1-ol, ethyl 10-undecenoate, 10-undecene-1-ol, and triethoxyvinylsilane are particularly preferable.

Examples of the allyl monomer in the present invention include an allyl monomer having 3 carbon atoms (propenyl monomer) and an allyl monomer having an allyl group and having 4 or more carbon atoms. The allyl monomer is an allyl monomer having a polar group such as halogen-containing, nitrogen-containing, oxygen-containing, and sulfur-containing, and in particular, halogen, hydroxyl group, amino group, nitro group, carboxyl group, formyl group, ester group, epoxy group, and nitrile group. It is a vinyl monomer containing the above. Preferred specific examples are allyl acetate, allyl alcohol, allylamine, N-allylaniline, Nt-butoxycarbonyl-N-allylamine, N-benzyloxycarbonyl-N-allylamine, N-allyl-N-benzylamine, allyl chloride. , Allyl bromide, allyl ether, diallyl ether and the like. Among these, allyl acetate and allyl alcohol are particularly preferable, and allyl acetate, allyl ether and diallyl ether are more preferable.

The polymerization reaction of the present invention includes hydrocarbon solvents such as propane, n-butane, isobutane, n-hexane, n-heptane, toluene, xylene, cyclohexane and methylcyclohexane, liquids such as liquefied α-olefins, and diethyl ether. It is carried out in the presence or absence of polar solvents such as ethylene glycol dimethyl ether, tetrahydrofuran, dioxane, ethyl acetate, methyl benzoate, acetone, methyl ethyl ketone, formamide, acetonitrile, methanol, isopropyl alcohol, ethylene glycol and the like. Moreover, you may use the mixture of the liquid compound described here as a solvent. In addition, ionic liquids can also be used as solvents. The above-mentioned hydrocarbon solvent and ionic liquid are more preferable in order to obtain high polymerization activity and high molecular weight.

In the present invention, the polymerization reaction can be carried out in the presence or absence of a known additive. As the additive, a polymerization inhibitor that prohibits radical polymerization and an additive that has an action of stabilizing the produced copolymer are preferable. For example, quinone derivatives and hindered phenol derivatives are examples of preferred additives. Specifically, monomethyl ether hydroquinone, 2,6-di-t-butyl4-methylphenol (BHT), reaction product of trimethylaluminum and BHT, reaction product of tetravalent titanium alcoxide and BHT, etc. Can be used. Inorganic and / or organic fillers may be used as additives, and the polymerization may be carried out in the presence of these fillers. Further, L1 or an ionic liquid according to the present invention may be used as an additive.

A Lewis base is mentioned as a preferable additive in the present invention. By selecting an appropriate Lewis base, the activity, molecular weight, and copolymerizability of the acrylic acid ester can be improved. The amount of Lewis base is 0.0001 equivalent to 1000 equivalent, preferably 0.1 equivalent to 100 equivalent, and more preferably 0.3 equivalent, relative to the transition metal M in the catalyst component present in the polymerization system. ~ 30 equivalents. The method for adding the Lewis base to the polymerization system is not particularly limited, and any method can be used. For example, it may be added by mixing with the catalyst component of the present invention, may be added by mixing with a monomer, or may be added to the polymerization system independently of the catalyst component and the monomer. Moreover, you may use a plurality of Lewis bases in combination. Further, the same Lewis base as L1 according to the present invention may be used, or may be different.

Lewis bases include aromatic amines, aliphatic amines, alkyl ethers, aryl ethers, alkyl aryl ethers, cyclic ethers, alkyl nitriles, aryl nitriles, alcohols, amides, aliphatic esters. , Aromatic esters, phosphates, phosphites, thiophenes, thianslens, thiazoles, oxazoles, morpholins, cyclic unsaturated hydrocarbons and the like. Of these, particularly preferable Lewis bases are aromatic amines, aliphatic amines, cyclic ethers, aliphatic esters, and aromatic esters, and among them, preferred Lewis bases are pyridine derivatives, pyrimidine derivatives, and piperidine. Derivatives, imidazole derivatives, aniline derivatives, piperidine derivatives, triazine derivatives, pyrrole derivatives, furan derivatives.

Specific Lewis base compounds include pyridine, pentafluoropyridine, 2,6-rutidine, 2,4-rutidine, 3,5-rutidine, pyrimidine, N, N-dimethylaminopyridine, N-methylimidazole, 2, 2'-bipyridine, aniline, piperidine, 1,3,5-triazine, 2,4,6-tris (trifluoromethyl) -1,3,5-triazine, 2,4,6-tris (2-pyridyl) -S-triazine, quinoline, 8-methylquinolin, phenazine, 1,10-phenanthroline, N-methylpyrol, 1,8-diazabicyclo- [5.4.0] -undec-7-ene, 1,4 -Diazabicyclo- [2,2,2] -octane, triethylamine, benzonitrile, picolin, triphenylamine, N-methyl-2-pyrrolidone, 4-methylmorpholin, benzoxazole, benzothiazole, furan, 2,5- Dimethylfuran, dibenzofuran, xanthene, 1,4-dioxane, 1,3,5-trioxane, dibenzothiophene, thianthrene, triphenylphosphonium cyclopentadienide, triphenylphosphite, triphenylphosphate, tripyrolidinophosphine, Tris (pyrrolidino) borane and the like can be mentioned.

In the present invention, the polymerization form is not particularly limited. Slurry polymerization in which at least a part of the produced polymer becomes a slurry in a medium, bulk polymerization using the liquefied monomer itself as a medium, vapor phase polymerization performed in a vaporized monomer, or a polymer produced in a monomer liquefied at high temperature and high pressure. High-pressure ion polymerization or the like in which at least a part of the above is dissolved is preferably used. Further, any of batch polymerization, semi-batch polymerization, and continuous polymerization may be used. Further, it may be a living polymerization, or the polymerization may be carried out while causing chain transfer. Further, a so-called chain transfer agent (CSA) may be used in combination to perform chain switching or coordinate transfer chain transfer polymerization (CCTP).

The unreacted monomer or medium may be separated from the produced copolymer and recycled for use. Upon recycling, these monomers and media may be purified and reused, or may be reused without purification. Conventionally known methods can be used for separating the produced copolymer from the unreacted monomer and the medium. For example, methods such as filtration, centrifugation, solvent extraction, and reprecipitation using a poor solvent can be used.
The polymerization temperature, polymerization pressure and polymerization time are not particularly limited, but usually, the optimum setting can be made in consideration of productivity and process capacity from the following ranges. That is, the polymerization temperature is usually −20 ° C. to 290 ° C., preferably 0 ° C. to 250 ° C., the copolymerization pressure is 0.1 MPa to 300 MPa, preferably 0.3 MPa to 250 MPa, and the polymerization time is 0.1 minutes. It can be selected from the range of 10 to 10 hours, preferably 0.5 minutes to 7 hours, and more preferably 1 minute to 6 hours.

In the present invention, the polymerization is generally carried out in an inert gas atmosphere. For example, a nitrogen, argon or carbon dioxide atmosphere can be used, and a nitrogen atmosphere is preferably used. A small amount of oxygen or air may be mixed.
The supply of the catalyst and the monomer to the polymerization reactor is not particularly limited, and various supply methods can be adopted depending on the purpose. For example, in the case of batch polymerization, it is possible to take a method in which a predetermined amount of monomer is supplied to the polymerization reactor in advance and a catalyst is supplied there. In this case, additional monomers and additional catalysts may be supplied to the polymerization reactor. Further, in the case of continuous polymerization, a method can be adopted in which a predetermined amount of monomer and catalyst are continuously or intermittently supplied to the polymerization reactor to carry out the polymerization reaction continuously.

Regarding the control of the composition of the copolymer, a method of supplying a plurality of monomers to the reactor and controlling the composition by changing the supply ratio can be generally used. In addition, there are a method of controlling the copolymer composition by utilizing the difference in the monomer reactivity ratio due to the difference in the structure of the catalyst, and a method of controlling the copolymer composition by utilizing the polymerization temperature dependence of the monomer reactivity ratio. ..
A conventionally known method can be used for controlling the molecular weight of the polymer. That is, a method of controlling the molecular weight by controlling the polymerization temperature, a method of controlling the molecular weight by controlling the monomer concentration, a method of controlling the molecular weight using a chain transfer agent, and a method of controlling the ligand structure in the transition metal complex. And so on. When a chain transfer agent is used, a conventionally known chain transfer agent can be used. For example, hydrogen, metal alkyl and the like can be used.
Further, when the component (b) itself is a kind of chain transfer agent, the molecular weight can be adjusted by controlling the ratio of the component (b) to the component (a) and the concentration of the component (b). is there. Transition metal-ligand structures to control the complexes, in case of performing a molecular weight modifier, the kind of heteroatom-containing groups in R ^2, R ³ described above, the number, or to control the placement, bulk around the metal M or to place high substituent by or to introduce a heteroatom in R ⁶ described above, can be utilized tend to generally increase the molecular weight. It is preferable to arrange the electron donating group with respect to the metal M so that the electron donating group such as an aryl group or a heteroatom-containing substituent can interact with the metal M. Whether or not such an electron-donating group can interact with the metal M can generally be determined by measuring the distance between the electron-donating group and the metal M by a molecular model or molecular orbital calculation.

In particular, the copolymer obtained by the present invention has good paintability, printability, antistatic property, inorganic filler dispersibility, adhesiveness with other resins, and with other resins due to the effect based on the polar group of the copolymer. The compatibility ability and the like are exhibited. Taking advantage of these properties, the copolymer of the present invention can be used for various purposes. For example, it can be used as a film, a sheet, an adhesive resin, a binder, a compatibilizer, a wax and the like.

The present invention will be described in more detail in the following Examples and Comparative Examples, but the present invention is not limited thereto.
In the following synthesis examples, unless otherwise specified, the operation was carried out in a purified nitrogen atmosphere, and the solvent used was dehydrated and deoxidized.

1. 1. Evaluation method (1) Weight average molecular weight Mw, number average molecular weight Mn and molecular weight distribution Mw / Mn: Obtained by the following GPC measurement.
First, about 20 mg of a sample was collected in a vial for the high-temperature GPC pretreatment device PL-SP 260VS manufactured by Polymer Laboratory, and o-dichlorobenzene (BHT concentration = 0.5 g / L) containing BHT as a stabilizer was added. In addition, the polymer concentration was adjusted to 0.1% by mass. The polymer was dissolved by heating to 135 ° C. in the above-mentioned pretreatment device for high temperature GPC PL-SP 260VS, and filtered through a glass filter to prepare a sample. In the GPC measurement in the present invention, no polymer was trapped in the glass filter. Next, as a column, GPC measurement was performed using TSKgel GMH-HT (30 cm × 4) manufactured by Tosoh Co., Ltd. and GPCV 2000 manufactured by Waters Co., Ltd. equipped with an RI detector. As the measurement conditions, a sample solution injection amount: about 520 μL, a column temperature: 135 ° C., a solvent: o-dichlorobenzene, and a flow rate: 1.0 mL / min were adopted. The molecular weight was calculated as follows. That is, using commercially available monodisperse polystyrene as a standard sample, a calibration curve regarding the retention time and molecular weight is created from the polystyrene standard sample and the viscosity formula of the ethylene polymer, and the molecular weight is calculated based on the calibration curve. went. As the viscosity formula, [η] = K × Mα is used, K = 1.38E-4 and α = 0.70 are used for polystyrene, and for ethylene-based polymers, K = 0.70 is used. K = 4.77E-4 and α = 0.70 were used, and for the propylene-based polymer, K = 1.03E-4 and α = 0.78 were used.

2. Ligand Synthesis (Synthesis Example 1): Synthesis of Ligand B-349 Ligand B-349 was synthesized according to the following scheme.
In the following chemical formula, -OMOM represents a _{methoxymethoxy group (-OCH 2} OCH _3).

(1) Synthesis of Compound 3a Under an argon atmosphere, n-butyllithium (2.5 M, 24.6 mL, 61.5 mmol) was added to 100 mL of a THF solution of Compound 1 (8.5 g, 61.5 mmol) at 0 ° C. Then, the mixture was stirred at 0 ° C. for 1 hour. Then di-tert-butylchlorophosphine (11.1 g, 61.5 mmol, 11.7 mL) was added at −78 ° C. and stirred at 10 ° C. for 2 hours (formation of compound 2). Then, n-butyllithium (2.5 M, 29.5 mL, 73.8 mmol) was added at 0 ° C., and the reaction solution was stirred at 0 ° C. for 1 hour. Hexafluorobenzene (17.2 g, 92.3 mmol) was added to this reaction solution at −78 ° C., and the mixture was stirred at 10 ° C. for 12 hours. The reaction solution was poured into 50 mL of ice water and extracted with ethyl acetate (100 mLx2). The organic phase was dried over anhydrous sodium sulfate and concentrated to give a crude product. The crude product was purified on a silica gel column (petroleum ether / ethyl acetate = 100: 1-20: 1) and recrystallized from petroleum ether: ethyl acetate (20: 1, 50 mL) to give compound 3a (compound 3a). 5.0 g, 10.7 mmol, yield 17.4%).

(2) Synthesis of Ligand B-349 Under an argon atmosphere, HCl / ethyl acetate (4M, 85.1 mL, 340.2 mmol) was added to 20.0 mL of a dichloromethane solution of compound 3a (5.0 g, 11.2 mmol) at 0 ° C. Was added, and the mixture was stirred at 10 ° C. for 2 hours. The volatile components were distilled off under reduced pressure, and 100 mL of dichloromethane was added to the residue. The organic phase was washed with saturated aqueous sodium hydrogen carbonate solution (100 mLx2) and concentrated to give B-349 (3.9 g, 9.28 mmol, yield 83.2%).
^{1 1} HNMR (400 MHz, CDCl ₃ , δ, ppm): 8.19 (s, 1H), 7.71 (d, J = 7.6 Hz, 1H), 7.25 (s, 1H), 7.00 ( t, J = 7.4Hz, 1H), 1.28 (s, 9H), 1.25 (s, 9H);
³¹ PNMR (162 MHz, CDCl ₃ , δ, ppm) -5.84 (s).

(Synthesis Example 2): Synthesis of Ligand B-395 Ligand B-395 was synthesized according to the following scheme.

(1) Synthesis of Compound 3b n-Butyllithium (2.5 M, 8.7 mL, 21.8 mmol) was added to 20 mL of a THF solution of Compound 1 (3.0 g, 21.7 mmol) at 0 ° C., and 1 at 0 ° C. Stirred for hours. Then, di-tert-butylchlorophosphine (3.9 g, 21.7 mmol, 4.1 mL) was added at −78 ° C., and the mixture was stirred at 15 ° C. for 2 hours (formation of compound 2). Then, n-butyllithium (2.5 M, 10.9 mL, 27.2 mmol) was added at 0 ° C., and the mixture was stirred at 0 ° C. for 1 hour. Then, chlorotrimethylsilane (3.54 g, 32.6 mmol, 4.1 mL) was added at −78 ° C., and the mixture was stirred at 15 ° C. for 12 hours. The reaction solution was poured into 50 mL of ice water and extracted with ethyl acetate (50 mLx2). The organic phase was dried over anhydrous sodium sulfate and concentrated to give a crude product. The crude product was purified by a silica gel column (petroleum ether as a developing solvent) to obtain a colorless oily compound 3b (2.3 g, 6.3 mmol, yield 28.7%).

(2) Synthesis of Ligand B-395 Under an argon atmosphere, HCl / ethyl acetate (2M, 15.0 mL, 30.0 mmol) was added to 30 mL of a dichloromethane solution of compound 3b (2.4 g, 6.8 mmol) at 0 ° C. , Stirred at 15 ° C. for 1.5 hours. The volatile components were distilled off under reduced pressure to obtain a pale yellow oil. 100 mL of dichloromethane was added, and the organic phase was washed with 100 mL of saturated aqueous sodium hydrogen carbonate solution and concentrated to obtain B-395 in the form of a white solid (1.0 g, 2.9 mmol, yield 91.0%).
^{1 1} HNMR (400 MHz, CDCl ₃ , δ, ppm): 8.01 (s, 1H), 7.56 (d, J = 7.6 Hz, 1H), 7.38 (dd, J = 7.2 Hz, 1) .6Hz, 1H), 6.86 (t, J = 7.4Hz, 1H), 1.23 (s, 9H), 1.20 (s, 9H), 0.29 (s, 9H);
³¹ PNMR (162 MHz, CDCl ₃ , δ, ppm) -6.04 (s).

(Synthesis Example 3): Synthesis of Ligand B-396 Ligand B-396 was synthesized according to the following scheme.

(1) Synthesis of Compound 12 The synthesis of Compound 11 was carried out with reference to Japanese Patent Application Laid-Open No. 2016-17134.
To 60 mL of a THF solution of compound 11 (10.0 g, 33.0 mmol) was added n-butyllithium (2.5 M, 15.8 mL, 39.5 mmol) at 0 ° C. and stirred at 0 ° C. for 1 hour. Then, 10 mL of a THF solution of iodine (10.0 g, 39.6 mmol, 8.0 mL) was added at 0 ° C. The reaction mixture was stirred at 25 ° C. for 16 hours. 30 mL of water was added to the reaction mixture, the mixture was quenched, and the mixture was extracted with ethyl acetate (30 mLx3). The organic phase was washed with 15 mL of brine, dried over anhydrous sodium sulfate and concentrated to give the crude product. The crude product was purified on a silica gel column (petroleum ether as a developing solvent) to obtain Compound 12 (7.5 g, 17.4 mmol, yield 53.7%).

(2) Synthesis of compound 3c Under a nitrogen atmosphere, compound 12 (900 mg, 2.1 mmol), di-tert-butylphosphine (337.8 mg, 2.3 mmol), tris (dibenzylideneacetone) dipalladium (192.3 mg) , 210.0 μmol), sodium-tert-butoxide (403.6 mg, 4.2 mmol), bis [2- (diphenylphosphino) phenyl] ether (DPEPhos, 1.1 g, 2.1 mmol) in a toluene solution 10.0 mL Was stirred at 100 ° C. for 16 hours and the reaction mixture was concentrated to give a crude product. The crude product was purified on a silica gel column (petroleum ether: ethyl acetate = 10: 1 as a developing solvent) to obtain compound 3c (210.0 mg, 469.2 μmol, yield 22.34%).

(3) Synthesis of Ligand B-396 HCl / ethyl acetate (4M, 40.0 mL, 160.0 mmol) was added to 3 mL of a dichloromethane solution of compound 3c (3.1 g, 6.9 mmol) at 0 ° C. The reaction mixture was stirred at 25 ° C. for 2 hours to give a yellow solution. The reaction mixture was concentrated to give a crude product. The crude product was prepared at pH 6.5-7.0 with 30 mL of saturated aqueous sodium hydrogen carbonate solution and extracted with dichloromethane (25 mLx3). The organic phase was washed with 25 mL of brine, dried over anhydrous sodium sulfate, and concentrated to give Ligand B-396 (2.4 g, 6.0 mmol, yield 85.9%).
^{1 1} HNMR (400 MHz, CDCl ₃ , δ, ppm): 8.15 (d, J = 7.8 Hz, 2H), 8.08 (s, 1H), 7.76 (dt, J = 7.8 Hz, 1) .9Hz, 1H), 7.49 (dd, J = 7.7Hz, 1.4Hz, 1H), 7.40 (t, J = 7.6Hz, 2H), 7.27 (t, J = 7. 6Hz, 2H), 7.18 (d, J = 8.1Hz, 2H), 7.09 (t, J = 7.7Hz, 1H), 1.32 (s, 9H), 1.29 (s, 9H);
³¹ PNMR (162 MHz, CDCl ₃ , δ, ppm) -5.75 (s).

(Comparative Synthesis Example 1): Synthesis of Ligand B-399 Ligand B-399 was synthesized according to the following scheme.

(1) Synthesis of Compound 2 To 30 mL of a THF solution of Compound 1 (4.0 g, 29.0 mmol), n-butyllithium (2.5 M, 12.2 mL, 30.0 mmol) was added at 0 ° C. and at 0 ° C. The mixture was stirred for 1 hour. Then, di-tert-butylchlorophosphine (5.2 g, 29.0 g, 5.5 mL) was added at −78 ° C., and the mixture was stirred at 15 ° C. for 12 hours. The reaction solution was poured into 20 mL of ice water and extracted with ethyl acetate (20 mLx2). The organic phase was dried over anhydrous sodium sulfate and concentrated to give a crude product. The crude product was purified by a silica gel column (petroleum ether: ethyl acetate = 1: 0-50: 1 as a developing solvent) to obtain Compound 2 (3.5 g, 9.0 g, yield 31.2%).

(2) Under argon atmosphere, compound 3d, Compound _{2 (3.9g, 13.9mmol) BH 3} · THF in THF solution 10mL of (1.0M, 16.7mL, 16.7mmol) at -78 ° C. It was added and stirred at 10 ° C. for 1 hour. BH _3. Dimethyl sulfide (10M, 1.7 mL, 16.7 mmol) was added at −78 ° C., and the mixture was stirred at 10 ° C. for 12 hours. To this reaction solution, 10 mL of ice water was added at 0 ° C., and the volatile components were distilled off under reduced pressure. 20 mL of water was added, and the mixture was extracted with ethyl acetate (20 mLx3). The organic phase was dried over anhydrous sodium sulfate and concentrated to give a white solid. The white solid was recrystallized from 10 mL of ethyl acetate to give compound 3d (1.5 g, 5.1 mmol, yield 36.4%).

(3) Synthesis of Ligand B-399 Under an argon atmosphere, HCl / ethyl acetate (4M, 80.0 mL, 320.0 mmol) was added to 20 mL of dichloromethane of compound 3d (5.4 g, 18.2 mmol) at 0 ° C. The mixture was stirred at 10 ° C. for 3 hours. The volatile components were distilled off under reduced pressure, and 100 mL of dichloromethane was added. The organic phase was washed with 100 mL of saturated aqueous sodium hydrogen carbonate solution and concentrated to obtain Ligand B-399 (4.0 g, 16.8 mmol, yield 92.1%).
^{1 1} HNMR (400 MHz, CDCl ₃ , δ, ppm): 7.85 (s, 1H), 7.57 (dt, J = 7.6 Hz, 1.4 Hz, 1H), 7.28 (td, J = 7) .7Hz, 1.6Hz, 1H), 6.94 (td, J = 7.2Hz, 1.2Hz, 1H), 6.87 (td, J = 7.5Hz, 1.2Hz, 1H), 1. 32 (s, 9H), 1.29 (s, 9H);
³¹ PNMR (162 MHz, CDCl ₃ , δ, ppm) -6.21 (s).

3. 3. Synthesis of complex (Example 1): Synthesis of complex (B-349) Ni ((1,4,5-η) -COE) The following operations were all carried out in a high-purity argon atmosphere. Hereinafter, bis-1,5-cyclooctadiene nickel (0) _{is referred to as Ni (COD) 2,} and (1,4,5-η) -4-cyclooctene-1-yl ligand is referred to as (1,4). , 5-η) -COE.
First, the ligand B-349 (50 mg, 0.12 mmol) was weighed into a 25 mL eggplant flask. Next, Ni (COD) ₂ (40 mg, 0.15 mmol) was weighed into another flask and dissolved in toluene (7.3 mL) _{to prepare a 20 mmol / mL Ni (COD) 2} toluene solution. The resulting solution was yellow and transparent. 6.2 mL of the Ni (COD) ₂ toluene solution obtained here was added to an eggplant flask containing ligand B-349 to obtain a solution. Then, the mixture was stirred at room temperature for 1 hour. At this time, it was confirmed that the color of the solution gradually changed from dark yellow to brown and there was no precipitation, and _{the reaction products of B-349 and Ni (COD) 2} ((B-349) Ni ((1,4)). A 20 mmol / mL solution of 5-η) -COE)) was obtained. Here, the concentration of the reaction product was calculated assuming that B-349 and Ni (COD) ₂ reacted 1: 1 to form a nickel complex.

(Example 2): Synthesis of complex (B-395) Ni ((1,4,5-η) -COE) Except that ligand B-395 was used instead of ligand B-349 in Example 1 above. Synthesized the complex (B-395) Ni ((1,4,5-η) -COE) by the same procedure as in Example 1.

(Example 3): Synthesis of complex (B-396) Ni ((1,4,5-η) -COE) Except that ligand B-396 was used instead of ligand B-349 in Example 1 above. Synthesized the complex (B-396) Ni ((1,4,5-η) -COE) by the same procedure as in Example 1.

(Example 4): Synthesis of complex (B-395) NiPhPy Complex (B-395) NiPhPy was synthesized according to the following scheme.

グローブボックス中、１５ｍＬバイアルにリガンドＢ−３９５（５３ｍｇ、０．１７ｍｍｏｌ）と水素化カリウム（１７ｍｇ、０．４３ｍｍｏｌ）を入れて、ジエチルエーテル５ｍＬを加え、３０分間撹拌した。反応混合物はセライトを通してろ過し、セライトはジエチルエーテル３ｍＬで洗浄した。ＮｉＰｈＣｌ（ＴＭＥＤＡ）（ＴＭＥＤＡ：テトラメチルエチレンジアミン）は、非特許文献Ｍａｒｓｈａｌｌ， Ｗ． Ｊ．； Ｇｒｕｓｈｉｎ， Ｖ． Ｖ． Ｃａｎ． Ｊ． Ｃｈｅｍ． ２００５， ８３， ６４０を参考し合成した。ＮｉＰｈＣｌ（ＴＭＥＤＡ）（４９ｍｇ、０．１７ｍｍｏｌ）を上記ジエチルエーテルろ液に添加し、終夜撹拌した。反応溶液は、セライトを通してろ過し、セライトはジエチルエーテル３ｍＬで洗浄した。このろ液に、ピリジン（１３ｍｇ、０．１７ｍｍｏｌ）を添加し、室温で終夜撹拌した。その後、反応混合物は、セライトを通してろ過し、セライトはジエチルエーテル１．５ｍＬで洗浄し、揮発成分を減圧下で除去し、粗生成物を得た。粗生成物にペンタン１ｍＬを加え、−３５℃で終夜静置した。生成した固体をろ過で回収し、冷やしたペンタン１ｍＬで洗浄し、室温で１時間減圧乾燥することで、（Ｂ−３９５）ＮｉＰｈＰｙを得た（６０ｍｇ、収率６７％）。
^１Ｈ−ＮＭＲ（４００ＭＨｚ，Ｃ_６Ｄ_６）δ８．７２−８．７０（ｍ，２Ｈ），７．９１（ｄ，Ｊ＝８．０Ｈｚ，２Ｈ），７．５４−７．５２（ｍ，１Ｈ），７．４８−７．４４（ｍ，１Ｈ），６．９８（ｔ，Ｊ＝７．４Ｈｚ，２Ｈ），６．８２（ｔ，Ｊ＝７．４Ｈｚ，１Ｈ），６．６７−６．６０（ｍ，２Ｈ），６．３８（ｔ，Ｊ＝６．８Ｈｚ，２Ｈ），１．４２（ｓ，９Ｈ），１．３９（ｓ，９Ｈ），０．２５（ｓ，９Ｈ）；
^３１Ｐ−ＮＭＲ（１６２ＭＨｚ，Ｃ_６Ｄ_６）δ５８．４１６．

Ligand B-395 (53 mg, 0.17 mmol) and potassium hydride (17 mg, 0.43 mmol) were placed in a 15 mL vial in a glove box, 5 mL of diethyl ether was added, and the mixture was stirred for 30 minutes. The reaction mixture was filtered through Celite, which was washed with 3 mL of diethyl ether. NiPhCl (TMEDA) (TMEDA: Tetramethylethylenediamine) is described in Non-Patent Documents Marshall, W. et al. J. Grushin, V.I. V. Can. J. Chem. It was synthesized with reference to 2005, 83, and 640. NiPhCl (TMEDA) (49 mg, 0.17 mmol) was added to the above diethyl ether filtrate, and the mixture was stirred overnight. The reaction solution was filtered through Celite, which was washed with 3 mL of diethyl ether. Pyridine (13 mg, 0.17 mmol) was added to the filtrate, and the mixture was stirred overnight at room temperature. The reaction mixture was then filtered through Celite, which was washed with 1.5 mL of diethyl ether and the volatile components removed under reduced pressure to give the crude product. 1 mL of pentane was added to the crude product, and the product was allowed to stand at −35 ° C. overnight. The produced solid was collected by filtration, washed with 1 mL of chilled pentane, and dried under reduced pressure at room temperature for 1 hour to obtain (B-395) NiPhPy (60 mg, yield 67%).
^{1 1} H-NMR (400 MHz, C ₆ D ₆ ) δ8.72-8.70 (m, 2H), 7.91 (d, J = 8.0 Hz, 2H), 7.54-7.52 (m, 1H), 7.48-7.44 (m, 1H), 6.98 (t, J = 7.4Hz, 2H), 6.82 (t, J = 7.4Hz, 1H), 6.67- 6.60 (m, 2H), 6.38 (t, J = 6.8Hz, 2H), 1.42 (s, 9H), 1.39 (s, 9H), 0.25 (s, 9H) ;
³¹ P-NMR (162 MHz, C ₆ D ₆ ) δ58.416.

(Example 5): was synthesized complexes (B-349) NIPH complex according (PEt ₃₎ the following scheme of (B-349) NiPh (PEt 3).

_{Ni (COD) 2} (1.57 g, 5.71 mmol) was added to an 80 mL Schlenk tube and dissolved in 10 mL of diethyl ether. The solution was cooled with ice water and triethylphosphine (25 mmol, 1.0 M THF solution) was added. The temperature was raised to room temperature, and the mixture was stirred for 2 hours. After removing the solvent, the Schlenk tube was transferred to the glove box. 5 mL of hexane was added and filtered through Celite. The Celite was then washed with 5 mL of hexane. Chlorobenzene (1.10 g, 9.77 mmol) was added to the filtrate, and the mixture was further stirred at room temperature for 4 hours. The solvent was then removed under reduced pressure and 5 mL of pentane was added. The resulting mixture was filtered through Celite, which was washed with 5 mL of Pentan. The filtrate was then stored overnight at −35 ° C. to give crystals. The crystals were washed with chilled pentane, and the obtained crystals were dried under reduced pressure at room temperature for 2 hours to obtain the desired product NiPhCl (Pet ₃ ) ₂ as an orange solid (2.00 g, 86%).
^{_{1 HNMR (500MHz, C 6 D}} 6) δ7.43 (d, J = 7.5Hz, 2H), 6.97 (t, J = 7.3Hz, 2H), 6.80 (t, J = 7. 0Hz, 1H), 1.32 (m, 12H), 1.02 (m, 18H);
^{_{13 CNMR (126MHz, C 6 D}} 6): 155.31 (t, J = 54Hz, 1C), 137.54 (t, J = 6Hz, 2C), 126.79 (t, J = 4Hz, 2C), 121.33 (t, J = 4Hz, 1C), 14.25 (t, J = 20Hz, 6C), 8.32 (s, 6C);
^{_{31 PNMR (202MHz, C 6 D}} 6) δ11.1;
Elemental analysis, Calcd for C ₁₈ H ₃₅ ClNiP ₂ ; C, 53.05; H, 8.66. found C, 52.81; H, 8.57.

In the glove box, 3 mL of a diethyl ether solution of potassium bis (trimethylsilyl) amide (26 mg, 0.12 mmol) was slowly added to ligand B-349 (50 mg, 0.12 mmol) collected in a 15 mL vial. The reaction mixture was stirred at room temperature for 10 minutes. To this reaction solution, _{1.5 mL of a diethyl ether solution of NiPhCl (Pet 3} ) (49 mg, 0.12 mmol) was added dropwise, 3 mL of THF was added, and the mixture was stirred overnight at room temperature. The reaction mixture was filtered through Celite, which was washed with 2 mL of THF. After distilling off the volatile components under reduced pressure, the product was extracted with hexane, filtered through Celite, and the Celite was washed with 3 mL of hexane. The volatile components were distilled off again under reduced pressure, 1.5 mL of pentane was added, and the mixture was allowed to stand at −35 ° C. overnight. The produced solid was collected by filtration, washed with 1 mL of chilled pentane, and dried under reduced pressure at room temperature for 1 hour to obtain (B-349) NiPh (Pet ₃ ) (40 mg, yield 52%).
^{_{1 HNMR (500MHz, C 6 D}} 6) δ7.53 (d, J = 7.5Hz, 2H), 7.48 (t, J = 6.3Hz, 1H), 6.93 (t, J = 7. 3Hz, 1H), 6.78 (t, J = 7.3Hz, 1H), 6.56 (t, J = 8.0Hz, 1H), 1.28 (s, 9H), 1.25 (s, 9H), 0.89-0.79 (m, 15H);
^{_{31 PNMR (202MHz, C 6 D}} 6) δ48.710 (d, J = 265Hz, 1P), 13.120 (d, J = 265Hz, 1P)

(Comparative Example 1): Synthesis of complex (B-399) Ni ((1,4,5-η) -COE) Except that ligand B-399 was used instead of ligand B-349 in Example 1 above. Synthesized the complex (B-399) Ni ((1,4,5-η) -COE) by the same procedure as in Example 1.

4. Propylene Polymerization or Copolymerization (Example 6): Propylene Polymerization Using the Complex of Example 1 Propylene (500 mL) was introduced into an induction stirring autoclave having an internal volume of 2 L. The complex of Example 1 ((B-349) Ni ((1,4,5-η) -COE)) was introduced into the autoclave with nitrogen gas. The temperature of the autoclave was raised to 50 ° C. while stirring the mixture. Polymerization was carried out for a predetermined time from the time when the temperature reached 50 ° C. After removing the unreacted monomer, the autoclave was opened and heat-dried to obtain a polymer.

(Example 7): Propylene polymerization using the complex of Example 2 In Example 6, instead of the complex of Example 1 ((B-349) Ni ((1,4,5-η) -COE)). A polymer was obtained by the same procedure as in Example 6 except that the complex of Example 2 ((B-395) Ni ((1,4,5-η) -COE)) was used.

(Example 8): Propylene polymerization using the complex of Example 3 In Example 6, instead of the complex of Example 1 ((B-349) Ni ((1,4,5-η) -COE)). A polymer was obtained by the same procedure as in Example 6 except that the complex of Example 3 ((B-396) Ni ((1,4,5-η) -COE)) was used.

(Example 9): Propylene polymerization using the complex of Example 4 In Example 6, instead of the complex of Example 1 ((B-349) Ni ((1,4,5-η) -COE)). A polymer was obtained by the same procedure as in Example 6 except that the complex of Example 4 ((B-395) NiPhPy) was used.

(Example 10): Propylene polymerization using the complex of Example 5 In Example 6, instead of the complex of Example 1 ((B-349) Ni ((1,4,5-η) -COE)). A polymer was obtained by the same procedure as in Example 6 except that the complex of Example 5 ((B-349) NiPh (Pet _{3)) was used.}

(Examples 11 to 13): Copolymerization using the complex of Example 2 In Example 6, the complex of Example 1 ((B-349) Ni ((1,4,5-η) -COE)). ) Was used instead of the complex of Example 2 ((B-395) Ni ((1,4,5-η) -COE)), and after the complex of Example 2 was introduced into the autoclave with nitrogen gas. The same as in Example 6 except that triethoxyvinylsilane (Example 11), ethyl 10-undecenoate (Example 12), or 3-butene-1-ol (Example 13) was further added to the autoclave. A polymer was obtained by the procedure.

(Example 14): Copolymerization using the complex of Example 4. A 50 mL stainless steel autoclave was dried in a dryer at 120 ° C. for 3 hours, assembled, and dried under reduced pressure at 125 ° C. for 2 hours. After cooling to room temperature, the complex of Example 4 ((B-395) NiPhPy) (5.0 μmol, 10.0 mL, 0.50 mmol / L toluene solution) and toluene (5 mL) were added to the autoclave under argon. Then allyl acetate was added. Then, the autoclave was filled with ethylene at 4.0 MPa and stirred at 50 ° C. for 16 hours. After cooling to room temperature, ethylene was purged, the reaction was quenched with 20 mL of ethanol, and the polymer was recovered by filtration. The polymer was dried under reduced pressure at 100 to 120 ° C. for 2 hours to obtain the desired polymer. The comonomer content in the copolymer was ^{determined by 1} HNMR measurement to determine the molar ratio of ethylene: comonomer, and is shown in the table with the notation of comonomer content mol%.

(Comparative Example 2): Propylene Polymerization Using the Complex of Comparative Example 1 In Example 6, instead of the complex of Example 1 ((B-349) Ni ((1,4,5-η) -COE)). A polymer was obtained by the same procedure as in Example 6 except that the complex of Comparative Example 1 ((B-399) Ni ((1,4,5-η) -COE)) was used.

Table 3 below compares the nickel raw materials and ligands used in the synthesis of the complexes of Examples 1 to 5 and Comparative Example 1.

Table 4 below summarizes the polymerization conditions and polymerization results of Examples 6 to 13 and Comparative Example 2 for polymerization or copolymerization using propylene. In addition, Table 5 below summarizes the polymerization conditions and polymerization results of Example 14 for copolymerization using ethylene. The polymerization activity in these tables represents the copolymer yield (g) per 1 mol of the complex used for the polymerization and the polymerization time per hour. In these tables, the weight average molecular weight Mw and the molecular weight distribution Mw / Mn are listed as the GPC measurement results for the polymer. The copolymerization amount in these tables indicates the ratio of the amount of comonomer uptake to the total amount of monomer subjected to polymerization.

5. Discussion As can be seen from Comparative Example 2 in Table 4 above, in polypropylene polymerization using a conventional complex (Comparative Example 1), the polymerization activity is ^{as low as 4.0 × 10 3} (g / mol / hr), and the obtained weight is obtained. The molecular weight Mw of the coalescence is as small as 3,200. On the other hand, as can be seen from Examples 6 to 10 in Table 4 above, the polypropylene polymerization using the metal complex of the present invention (Examples 1 to 5) has a polymerization activity of 6.5 × 10 ^3. It is as high as (g / mol / hr) or more, and the molecular weight Mw of the obtained polymer is as large as 4,900 or more. Thus, the metal complexes of the present invention using a substituent containing a hetero atom in R ^1, compared to the case R ¹ is hydrogen (Comparative Example 1), can exhibit a high polymerization activity in the polypropylene polymerization, And a higher molecular weight polypropylene can be obtained. Further, the molecular weight distribution Mw / Mn of the obtained polypropylene is within 2.2.
Further, as can be seen from Examples 11 to 13 in Table 4 and Example 14 in Table 5, the copolymerization of the α-olefin and the polar group-containing monomer is good by the metal complex of the present invention. Achieved by polymerization activity.
From the above, in the metal complex of the present invention, an α-olefin homopolymer having a higher polymerization activity than the conventional one and a higher molecular weight can be obtained, and the copolymerization of the α-olefin and the polar group-containing monomer has a good polymerization activity. It is clear that it can achieve the above and has excellent technical significance.

By using the metal complex of the present invention, a novel functional polyolefin can be produced, which is very useful industrially especially in applications requiring adhesiveness and design.

Claims (13)

The following general formula [I] or a compound represented by [II] and, method for producing a metal complex which comprises contacting a transition metal compound containing nickel or palladium.

^{[R 1 to} R ⁶ , E ¹ , and X ¹ in the formula [I] and the formula [II] are as follows.
R ^{2, R 3} and ^{R 4} represents a hydrogen atom.
R ¹ represents a group selected from the group consisting of the following (v) and (vi).
(V) An aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or an alkylaryl having 7 to 30 carbon atoms having a group selected from the group consisting of a heteroatom and a group containing a heteroatom. Group (vi) Si (OR ⁸ ) _3-x (R ⁸ ) _x , where R ⁸ represents hydrogen or a hydrocarbon group having 1 to 20 carbon atoms, and x represents an integer from 0 to 3.
R ⁵ and R ⁶ independently represent a linear alkyl group having 1 to 6 carbon atoms, a branched acyclic alkyl group having 3 to 6 carbon atoms, or an alkenyl group having 2 to 6 carbon atoms.
R ⁵ and R ⁶ may be linked to each other to form an alicyclic ring or an aromatic ring. At this time, the number of ring members is 5 to 8, and there is no substituent on the ring.
E ¹ represents phosphorus, arsenic or antimony.
X ¹ represents oxygen or sulfur.
Also, in formula [I],
Z represents hydrogen, or a leaving group,
m represents the valence of Z. ] A metal complex represented by the following general formula [III].

^{[R 1 to} R ⁷ , E ¹ , X ¹ , M, L ¹ in the formula [III] are as follows.
R ^{2, R 3} and ^{R 4} represents a hydrogen atom.
R ¹ represents a group selected from the group consisting of the following (v) and (vi).
(V) An aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or an alkylaryl having 7 to 30 carbon atoms having a group selected from the group consisting of a heteroatom and a group containing a heteroatom. Group (vi) Si (OR ⁸ ) _3-x (R ⁸ ) _x , where R ⁸ represents hydrogen or a hydrocarbon group having 1 to 20 carbon atoms, and x represents an integer from 0 to 3.
R ⁵ and R ⁶ independently represent a linear alkyl group having 1 to 6 carbon atoms, a branched acyclic alkyl group having 3 to 6 carbon atoms, or an alkenyl group having 2 to 6 carbon atoms.
R ⁵ and R ⁶ may be linked to each other to form an alicyclic ring or an aromatic ring. At this time, the number of ring members is 5 to 8, and there is no substituent on the ring.
E ¹ represents phosphorus, arsenic or antimony.
X ¹ represents oxygen or sulfur.
M represents nickel or palladium.
R ⁷ represents hydrogen, or a hydrocarbon group having 1 to 20 carbon atoms which may have a group selected from the group consisting of heteroatoms and groups containing heteroatoms.
L ¹ represents a ligand coordinated to M.
R ⁷ and L ¹ may be combined with each other to form a ring. ] The R ^{1 is characterized by being an aryl group having 6 to 30 carbon atoms or Si (OR 8} ) _3-x (R ⁸ ) _x having a group selected from the group consisting of a hetero atom and a group containing a hetero atom. method for producing a metal complex according to claim 1,. The R ¹ Is an aryl group or Si (OR) having 6 to 30 carbon atoms and having a group selected from the group consisting of heteroatoms and groups containing heteroatoms. ⁸ ) _3-x (R ⁸ ) _x The metal complex according to claim 2. The method for producing a metal complex according to claim 1 or 3, wherein R ¹ is a pentafluorophenyl group, a carbazolyl group, a trimethylsilyl group, or a triethylsilyl group. The R ¹ The metal complex according to claim 2 or 4, wherein is a pentafluorophenyl group, a carbazolyl group, a trimethylsilyl group, or a triethylsilyl group. A metal complex represented by the following general formula [III] is produced by contacting a compound represented by the following general formula [I] or [II] with a transition metal compound containing nickel or palladium. A method for producing a metal complex.

^{[R 1 to} R ⁶ , E ¹ , and X ¹ in the formula [I] and the formula [II] are as follows.
R ^{2, R 3} and ^{R 4} represents a hydrogen atom.
R ¹ represents a group selected from the group consisting of the following (v) and (vi).
(V) An aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or an alkylaryl having 7 to 30 carbon atoms having a group selected from the group consisting of a heteroatom and a group containing a heteroatom. Group (vi) Si (OR ⁸ ) _3-x (R ⁸ ) _x , where R ⁸ represents hydrogen or a hydrocarbon group having 1 to 20 carbon atoms, and x represents an integer from 0 to 3.
R ⁵ and R ⁶ independently represent a linear alkyl group having 1 to 6 carbon atoms, a branched acyclic alkyl group having 3 to 6 carbon atoms, or an alkenyl group having 2 to 6 carbon atoms.
R ⁵ and R ⁶ may be linked to each other to form an alicyclic ring or an aromatic ring. At this time, the number of ring members is 5 to 8, and there is no substituent on the ring.
E ¹ represents phosphorus, arsenic or antimony.
X ¹ represents oxygen or sulfur.
Also, in formula [I],
Z represents hydrogen, or a leaving group,
m represents the valence of Z. ]

^{[M, R 7} and L ¹ in the formula [III] are as follows.
M represents nickel or palladium.
R ⁷ represents hydrogen, or a hydrocarbon group having 1 to 20 carbon atoms which may have a group selected from the group consisting of heteroatoms and groups containing heteroatoms.
L ¹ represents a ligand coordinated to M.
R ⁷ and L ¹ may be combined with each other to form a ring.
R ^{1 to} R ⁶ , E ¹ , and X ¹ in the formula [III] are the same as those in the formula [I] and the formula [II]. ] Claim 1, 3 or 5, characterized in that it comprises a method for producing a metal complex body according to method of olefin polymerization catalyst component comprising the metal complex. A catalyst component for olefin polymerization, which comprises the metal complex according to claim 2, 4 or 6. A catalyst for olefin polymerization, which comprises the following components (A) and (B), and if necessary, (C).
Component (A): Metal complex according to claim 2, 4 or 6 Component (B): Compound or ion-exchangeable layered silicate that reacts with component (A) to form an ion pair Component (C): Organoaluminium Compound The catalyst for olefin polymerization according to claim 10 , wherein the component (B) is an aluminoxane. A method for producing an α-olefin polymer, which comprises polymerizing or copolymerizing (a) an α-olefin in the presence of the polymerization catalyst according to claim 10 or 11. It is characterized in that (a) α-olefin and (b) (meth) acrylic acid ester monomer, vinyl monomer or allyl monomer are copolymerized in the presence of the polymerization catalyst according to claim 10 or 11. A method for producing an α-olefin copolymer.