JP6806299B2 - Method for preparing a hydrosilylated iron catalyst - Google Patents

Description

The present invention relates to a method for preparing a hydrosilylated iron catalyst, and more specifically to a method for preparing a hydrosilylated iron catalyst from an iron complex compound which is a catalyst precursor and a two-electron ligand.

The hydrosilylation reaction in which a Si—H functional compound is added to a compound having a carbon-carbon double bond or a triple bond is a useful means for synthesizing an organosilicon compound, and is also an industrially important synthesis. It is a reaction.
Pt, Pd, and Rh compounds are known as catalysts for this hydrosilylation reaction, and among them, the most commonly used catalysts are Pt compounds typified by Spieer catalysts and Karstedt catalysts.

A problem with the reaction using the Pt compound as a catalyst is that when a Si—H functional compound is added to the terminal olefin, a side reaction in which the olefin undergoes internal rearrangement occurs. This system does not show addition reactivity with internal olefins, and unreacted olefins remain in the addition product. Therefore, in order to complete the reaction, the amount remaining in the side reaction is expected in advance. It is necessary to use an excess of olefins.
Further, there is a problem that the selectivity between the α adduct and the β adduct is inferior depending on the type of olefin.

The biggest problem is that the central metals Pt, Pd, and Rh are all extremely expensive noble metal elements, and a metal compound catalyst that can be used at a lower cost is desired. Therefore, many studies have been conducted. It is being advanced.
Regarding the hydrosilylation reaction using an iron complex catalyst, for example, a reaction using an iron-carbonyl complex (Fe (CO) ₅ , Fe ₃ (CO) ₁₂ ) is known (Non-Patent Document 1), but the temperature of this reaction is 160 ° C. Reaction conditions at high temperature or light irradiation (Non-Patent Document 2) are required.
It has also been reported that these iron-carbonyl complexes give dehydrogenation silylation products rather than addition reactions (Non-Patent Documents 3 and 1).
Reaction examples of methylvinyldisiloxane and methylhydrogendisiloxane using an iron-carbonyl complex having a cyclopentadienyl group as a ligand have also been reported (Non-Patent Documents 4 and 2). Since the dehydrogenation silylation reaction also proceeds in the reaction, the selectivity of the addition reaction is low.

In the reaction of an iron catalyst having a terpyridine-based ligand (Non-Patent Document 5), not only a large excess reducing agent (NaBHEt ₃ ) is required as a reaction aid, but also PhSiH ₃ and Ph ₂ SiH _{2 become} olefins. However, the more useful trialkylsilanes, alkoxysilanes, and siloxanes have poor addition reactivity with olefins.
Similarly, it has been reported that an addition reaction product can be obtained in good yield by the reaction of an iron catalyst having a terpyridine-based ligand and a bistrimethylsilylmethyl group (Non-Patent Document 6), but this method first uses a catalyst precursor. It is not industrially easy to synthesize a terpyridine-iron complex to be used, introduce a bistrimethylsilylmethyl group at a low temperature, and synthesize a catalyst.

Fe complexes having a bisiminopyridine ligand have also been reported (Non-Patent Documents 7 and 8), and it has been disclosed that they exhibit excellent reactivity with alkoxysilanes and siloxanes under mild conditions. There is.
However, in the reaction using this complex, the reactivity with the internal olefin is low, and when synthesizing the complex, Na amal gum, which is composed of water-prohibited sodium and highly toxic mercury and requires careful handling, should be used (or water-free). (Use NaBet ₃ H), the stability of the complex compound itself is low, special equipment such as a glove box is required for handling, and it is necessary to store at low temperature in an atmosphere of an inert gas such as nitrogen. There is a problem such as there is.

Examples of reactions with cobalt-carbonyl complexes (Co ₂ (CO) ₈ etc.) have also been reported (Non-Patent Documents 9 to 14), but they are not satisfactory in terms of reaction yield and reaction molar ratio, and siloxanes are used. The addition reactivity of the above is also not disclosed.
An example of a reaction between an olefin and a trialkylsilane using a cobalt-carbonyl complex having a trialkylsilyl group as a substituent has also been reported (Non-Patent Document 15), but the yield is low and the selectivity is poor.
Reaction of olefin and trialkylsilane by using a cobalt-phosphite complex having a cyclopentadienyl group as a ligand (Non-Patent Document 16), olefin by a cobalt complex having an N-heterocyclic carbene as a ligand Although a reaction between trihydrophenylsilane and trihydrophenylsilane (Non-Patent Document 17) has been reported, the stability of the complex compound is low, special equipment such as a glove box is required for handling, and an inert gas is required for storage. It is necessary to have an atmosphere and a low temperature.

Examples of iron, cobalt, and nickel catalysts in which the ligands are terpyridine, bisiminopyridine, and bisiminoquinolin have been reported (Patent Documents 3 to 6), but similar to the above-mentioned Non-Patent Documents 6 to 8. There are problems that it is not industrially easy to synthesize a catalyst precursor or from the precursor to the synthesis of a complex catalyst, the stability of the complex compound itself is low, and special equipment is required for handling. is there.
Further, a method of using Mg (butadiene) / 2THF and NaEt ₃ BH as catalyst activators in a reaction using a complex catalyst having a bisiminoquinoline ligand is disclosed (Patent Document 7). Besides having the same problem, the yield of the target product is also unsatisfactory.

Many nickel complex catalysts have also been reported. For example, a catalyst using phosphine as a ligand (Non-Patent Document 18) is inferior in selectivity, and care must be taken in storing and handling the catalyst.
The catalyst coordinated with vinylsiloxane (Non-Patent Document 19) contains a dehydrogenation silylation product as a main component, and the selectivity of the addition reaction is low.
The yield of a catalyst using allylphosphine as a ligand (Non-Patent Document 20) is low, and trihydrophenylsilane is not an industrially valuable reaction substrate.
A catalyst having a bisamide group (Non-Patent Document 21) requires careful storage and handling of the catalyst, and dihydrodiphenylsilane is not an industrially valuable reaction substrate.
A catalyst having N-heterocyclic carbene as a ligand (Non-Patent Document 22) has low reaction selectivity, and trihydrophenylsilane does not have high industrial value.

Many rhodium complex catalysts have also been reported. For example, a catalyst having a carbonyl group or a COD group (cyclooctadienyl group) and an N-heterocarbene ligand (Non-Patent Documents 23 and 24) has low stability of a complex compound.
A method of reacting in the presence of an ionic liquid in order to increase the reactivity is also disclosed (Non-Patent Document 25), but a step of separating the ionic liquid from the reaction product is required. The catalyst also has a COD group and an N-heterocarbene group as ligands, and has the same problems as described above.
In addition, an example of a catalyst in which the dehydrogenation silylation reaction proceeds preferentially has been reported (Non-Patent Document 26).

Further, an example in which a carbene compound is added to a complex catalyst and hydrosilylation is performed without isolating the produced catalyst has also been reported (Non-Patent Document 27). The reactivity with three types of silanes was examined, and dimethylphenylsilane had the highest yield (yield 81%), followed by triethylsilane (66%) and triethoxysilane (40%). Of these three types of silanes, the reactivity with triethoxysilane, which has the highest industrial value, is not high. Moreover, the reactivity with siloxane has not been reported.
Further, the catalyst as a precursor has a COD group as a ligand, and care must be taken in storage and handling.

On the other hand, it has also been reported that triethoxylane undergoes an addition reaction in good yield with a rhodium catalyst having an acetylacetonate group or an acetate group (Non-Patent Document 28).
Although this method has the advantage of being easy to store and handle the catalyst, its reactivity with siloxane, which is more practical from an industrial point of view, has not been investigated.
Moreover, rhodium is still an expensive noble metal element, and in order to put it into practical use as a catalyst to replace platinum, it is required to further activate the catalytic function.

With the application to organopolysiloxane in mind, a catalyst having a phosphine ligand (Patent Document 8), a catalyst having an aryl-alkyl-triazenide group (Patent Document 9), and a colloidal catalyst (Patent Document 10). ), A catalyst having a sulfide group as a ligand (Patent Document 11), a catalyst having an amino group, a phosphino group, a sulfide group and an organosiloxane group as ligands (Patent Document 12) are disclosed.
However, only the expensive metal elements platinum, palladium, rhodium, and iridium are specifically exemplified for the reaction activity, and it cannot be said that the method is cost-effective.
Further, only the known platinum catalysts have been shown to be effective in the examples of Patent Documents 13 and 14, and do not suggest any structure showing catalytic activity with other metals.

A catalyst having carbene as a ligand is also disclosed (Patent Documents 15 to 17), but Patent Document 15 does not examine its effectiveness for a hydrosilylation reaction.
Patent Document 16 and Patent Document 17 disclose catalysts having carbene and vinylsiloxane as ligands, but only platinum catalysts are described as examples.
Moreover, the metal catalyst having carbene as a ligand has low storage stability of the complex compound, and care must be taken in handling.

Similarly, as examples of catalysts having carbene as a ligand, Patent Documents 27 and 28 disclose only platinum catalysts.
Further, Patent Document 29 discloses a metal-carbene complex catalyst obtained by reacting a Ni-carbene complex with a metal precursor. However, it is necessary to separately synthesize a Ni-carbene complex, and the metal precursor to be reacted is a metal compound having ligands such as phosphine and COD, and the metal precursor having these ligands has storage stability. Is low.
Patent Documents 30 and 31 disclose a complex catalyst obtained by reacting a Pd, Pt, and Ni complex having an olefinic ligand with carbene. However, metal complexes having an olefinic ligand have low storage stability except for a Pt catalyst using a known vinylsiloxane as a ligand.
Patent Document 32 discloses a Co-carbene complex, which has an activity in a hydrosilylation reaction with ketones.
Patent Documents 33 and 34 disclose the application of organopolysiloxane to the curing reaction of a metal-carbene complex, but the metal shown here is only Pt, and vinylsiloxane whose synthesis method is also known is arranged. It reacts with a Pt complex having a ligand as a carbene.

Although ruthenium catalysts having η ⁶ -arene and η ⁶ -triene as ligands are also disclosed (Patent Documents 18 and 19), the reaction activity is inferior to that of platinum catalysts, and the storage stability of complex compounds is low. , Handle with care.

Also disclosed is a method in which a metal salt and a compound having a coordinating property to a metal are mixed and used as a catalyst instead of using a metal complex as a catalyst (Patent Documents 20 to 26). However, in these patent documents, it is said that hydrosilylation proceeded in a combination of several cases, but there is no description of the yield and the like, and it is unclear how effectively the reaction proceeds.
For example, Patent Documents 21 and 22 describe some examples in which a compound corresponding to carbene is added to a halide of Co or Fe or a trimethylsilylamide salt, respectively, but it is described as having a reactive activity. Only phenyltrihydrosilane is present, and heptamethyltrisiloxane is said to have no reactive activity.
Similarly, Patent Document 25 discloses examples of Ni compounds and carbene compounds, and only one case was found to be active in the addition reaction to heptamethyltrisiloxane, and the others were active only in phenyltrihydrosilane. There are many examples that have been shown or are not active in heptamethyltrisiloxane.
Patent Documents 23 and 26 disclose examples of Ir or Ru compounds and carbene compounds, but those showing reaction activity are metal compounds having a COD group or η ⁶ -aryl group as an olefinic ligand. Only.
Moreover, although all the examples shown in Patent Documents 21 to 26 use an ionic salt or a hydride reducing agent as an activator, most of the examples are catalytically active. Is not shown.

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The present invention has been made in view of such circumstances, and the hydrosilylation reaction is allowed to proceed under mild conditions, which are easy to synthesize, using iron, which is particularly advantageous in terms of cost among transition metals. It is an object of the present invention to provide a method for preparing a hydrosilylated iron catalyst to be obtained.

As a result of diligent studies to achieve the above object, the present inventors have excellent hydrosilylation reaction in a catalyst obtained by using a predetermined iron complex as a catalyst precursor and a two-electron ligand. We have found that the addition reaction proceeds under mild conditions, and completed the present invention.

（式（３）中、Ｚは、炭素原子、窒素原子または酸素原子を表し、Ｚが炭素原子のとき、ｂは３であり、Ｚが窒素原子のとき、ｂは２であり、Ｚが酸素原子のとき、ｂは１であり、
Ｒ¹およびＲ²は、互いに独立して、ハロゲン原子またはアルコキシ基で置換されていてもよい、炭素数１〜３０のアルキル基、アリール基またはアラルキル基を表し、Ｒ¹のいずれか１つと、Ｒ²のいずれか１つが結合して２価の有機基を構成して環状構造をとっていてもよく、環状構造をとるときは、窒素原子および／または不飽和結合を含んでいてもよい。）
で表される、１つまたは２つの窒素原子が隣接しているカルベン化合物から選ばれる少なくとも１種の二電子配位子である１０のヒドロシリル化鉄触媒の調製方法、
１２． 前記式（３）で表されるカルベン化合物が、式（４）で表される１１のヒドロシリル化鉄触媒の調製方法、

（式中、Ａは、窒素原子および／または不飽和結合を含んでいてもよい炭素数２〜５の２価の有機基を表す。）
１３． 前記Ｌが、ビスイミノピリジン化合物またはテルピリジン化合物である１０のヒドロシリル化鉄触媒の調製方法、
１４．脂肪族不飽和結合を有する化合物と、Ｓｉ−Ｈ基を有するヒドロシラン化合物またはオルガノヒドロポリシロキサン化合物とをヒドロシリル化反応させる系内で行う１〜１３のいずれかのヒドロシリル化鉄触媒の調製方法
を提供する。 That is, the present invention
1. 1. Equation (1)
Fe (X) _a (1)
(In the formula, X represents a ligand having 2 to 30 carbon atoms which may contain an unsaturated group, excluding the carbonyl group (CO group) and the cyclopentadienyl group, independently of each other. At least one of them contains an unsaturated group
a represents an integer of 2 to 4 per Fe atom. )
A mononuclear complex of iron, or a dinuclear or trinuclear complex in which Fe has a bond with a carbon atom contained in X and the total number of Fe-carbon bonds is 2 to 10.
A method for preparing a hydrosilylated iron catalyst, which comprises reacting with a two-electron ligand (L).
2. 2. 1. A method for preparing a hydrosilylated iron catalyst in which Fe is bonded only to a carbon atom contained in X.
3. 3. A method for preparing a 1 or 2 hydrosilylated iron catalyst in which X comprises only a ligand having 2 to 30 carbon atoms containing an unsaturated group.
4. The method for preparing an iron hydrosilylated catalyst according to any one of 1 to 3, wherein X is an aryl group and the total number of Fe-carbon bonds is 2.
5. A method for preparing an iron catalyst hydrosilylated according to any one of 1 to 3, which is a mononuclear complex having a total number of Fe-carbon bonds of 6 to 10.
6. A method for preparing a hydrosilylated iron catalyst having a total number of Fe-carbon bonds of 10.
7. Hydrosilylation of 5 or 6 where X is at least one ligand selected from cyclic olefins, acyclic olefins, cyclic olefinyl groups and acyclic olefinyl groups having 1 to 5 unsaturated groups in the molecule. Preparation method of iron catalyst,
8. The L is at least one two-electron selected from a carbonyl group, molecular hydrogen, amine, imine, nitrogen-containing heterocycle, phosphine, alcine, alcohol, thiol, ether, sulfide, nitrile, isocyanide, aldehyde, ketone and carbene. Method for preparing the hydrosilylated iron catalyst according to any one of 1 to 7 as a ligand,
9. The L is at least one two-electron ligand selected from molecular hydrogen, amine, imine, nitrogen-containing heterocycle, phosphine, alcine, alcohol, thiol, ether, sulfide, nitrile, isocyanide, aldehyde, ketone and carbene. 8 How to prepare a hydrosilylated iron catalyst,
10. A method for preparing a hydrosilylated iron catalyst of 9, wherein L is at least one two-electron ligand selected from a nitrogen-containing heterocycle, isocyanide and carbene.
11. The L is the formula (2)
Y-NC (2)
(In formula (2), Y may be substituted, and one or more atoms selected from oxygen, nitrogen, sulfur and phosphorus may be interposed. Monovalent organic having 1 to 30 carbon atoms. The isocyanide compound represented by (representing a group), and the formula (3).

(In formula (3), Z represents a carbon atom, a nitrogen atom or an oxygen atom, and when Z is a carbon atom, b is 3, when Z is a nitrogen atom, b is 2, and Z is oxygen. When it is an atom, b is 1,
R ¹ and R ² represent an alkyl group having 1 to 30 carbon atoms, an aryl group or an aralkyl group, which may be substituted with a halogen atom or an alkoxy group independently of each other, and any one of R ¹ and Any one of R ² may be bonded to form a divalent organic group to form a cyclic structure, and when the cyclic structure is formed, a nitrogen atom and / or an unsaturated bond may be contained. )
A method for preparing 10 hydrosilylated iron catalysts, which are at least one two-electron ligand selected from carbene compounds in which one or two nitrogen atoms are adjacent to each other, represented by.
12. The method for preparing the 11 hydrosilylated iron catalyst represented by the formula (4), wherein the carbene compound represented by the formula (3) is used.

(In the formula, A represents a divalent organic group having 2 to 5 carbon atoms which may contain a nitrogen atom and / or an unsaturated bond.)
13. Method for preparing 10 hydrosilylated iron catalysts, wherein L is a bisiminopyridine compound or a terpyridine compound.
14. Provided is a method for preparing any of 1 to 13 hydrosilylated iron catalysts, which is carried out in a system for hydrosilylating a compound having an aliphatic unsaturated bond and a hydrosilane compound having a Si—H group or an organohydropolysiloxane compound. To do.

The iron complex compound which is a precursor of the hydrosilylated iron catalyst of the present invention can be easily obtained by synthesizing by a known method.
This iron complex compound does not have hydrosilylation catalytic activity by itself, but exhibits good catalytic activity when combined with a predetermined two-electron ligand.
Further, in order to generate a reactive species using an inert iron complex, a reducing agent is often required, but in the present invention, hydrosilane itself, which is a reactant, is used as a reducing agent, so other reductions are required. It is not necessary to add an agent, and the addition reaction by the desired hydrosilylation proceeds without the addition.
The catalyst of the present invention prepared from the iron complex as a precursor and the two-electron ligand may be used after isolating the prepared catalyst, or prepared in a system to be hydrosilylated, and this is simply prepared. You may use it without releasing it.
Using the catalyst of the present invention prepared from an iron complex as a precursor and a two-electron ligand, a hydrosilylation reaction is carried out between an aliphatic unsaturated group-containing compound and a silane having a Si—H group or a polysiloxane. Then, the addition reaction becomes possible under the conditions of room temperature to 100 ° C. or lower. In particular, the addition reaction with industrially useful polysiloxane, trialkoxysilane, and dialkoxysilane also proceeds well.
In known literature, in the same reaction using an iron complex, an addition reaction to an unsaturated group and a reaction for producing an unsaturated group-containing compound by a dehydrogenation silylation reaction often proceed simultaneously, and a dehydrogenation silylation reaction occurs. However, when the catalyst of the present invention is used, the addition reaction to the unsaturated group proceeds preferentially, which is extremely useful in the silicone industry.

It is a figure which shows the X-ray crystal structure analysis result of the iron complex A obtained in synthesis example 5. 6 is a ¹ H-NMR spectrum diagram of the iron complex A obtained in Synthesis Example 5. FIG. 3 is a ¹³ C-NMR spectrum diagram of the iron complex A obtained in Synthesis Example 5. It is a figure which shows the X-ray crystal structure analysis result of the iron complex B obtained in synthesis example 6. 6 is a ¹ H-NMR spectrum diagram of the iron complex B obtained in Synthesis Example 6. FIG. 3 is a ¹³ C-NMR spectrum diagram of the iron complex B obtained in Synthesis Example 6. It is a figure which shows the X-ray crystal structure analysis result of the iron complex C obtained in synthesis example 7. 6 is a ¹ H-NMR spectrum diagram of the iron complex C obtained in Synthesis Example 7. FIG. 3 is a ¹³ C-NMR spectrum diagram of the iron complex C obtained in Synthesis Example 7. It is a figure which shows the X-ray crystal structure analysis result of the iron complex D obtained in synthesis example 8. 6 is a ¹ H-NMR spectrum diagram of the iron complex D obtained in Synthesis Example 8. FIG. 5 is a ¹³ C-NMR spectrum diagram of the iron complex D obtained in Synthesis Example 8.

Hereinafter, the present invention will be described in more detail.
The hydrosilylated iron catalyst according to the present invention has the formula (1).
Fe (X) _a (1)
A two-electron complex with an iron mononuclear complex, or a dinuclear or trinuclear complex, in which Fe has a bond with a carbon atom contained in X and the total number of Fe-carbon bonds is 2 to 10. It is prepared from a ligand (L).
In formula (1), X represents a ligand having 2 to 30 carbon atoms which may contain an unsaturated group, excluding the carbonyl group (CO group) and the cyclopentadienyl group, independently of each other. In the present invention, at least one of the ligands X of the iron complex represented by the formula (1) contains an unsaturated group.
a represents an integer of 2 to 4 per Fe atom, but is preferably 2.

The ligand X is not particularly limited as long as it has 2 to 30 carbon atoms which may contain an unsaturated group other than the carbonyl group and the cyclopentadienyl group, but in the present invention, the ligand X is a halogen. It is preferably selected from an alkyl group, an aryl group, an aralkyl group, a cyclic or acyclic olefin, a cyclic olefinyl group and an acyclic olefinyl group, which may be substituted with an atomic or alkoxy group.

The alkyl group may be a straight chain, a branched chain, or a cyclic group, preferably an alkyl group having 1 to 10 carbon atoms, and specific examples thereof include methyl, ethyl, n-propyl, isopropyl, and n-butyl. Isobutyl, s-butyl, t-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, n-tridecyl, n-tetradecyl, Linear or branched alkyl groups such as n-pentadecyl, n-hexadecyl, n-heptadecyl, n-octadecyl, n-nonadecil, n-eicosanyl groups; cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl. , Cycloalkyl groups such as norbornyl and adamantyl groups.

The aryl group is preferably an aryl group having 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and specific examples thereof include phenyl, 1-naphthyl, 2-naphthyl, anthryl, phenanthryl, and o-biphenylyl. , M-biphenylyl, p-biphenylyl group and the like.
The aralkyl group is preferably an aralkyl group having 7 to 30 carbon atoms, more preferably 7 to 20 carbon atoms, and specific examples thereof include benzyl, phenylethyl, phenylpropyl, naphthylmethyl, naphthylethyl and naphthylpropyl groups. And so on.

Specific examples of the cyclic olefin group include cyclobutene, cyclopentene, methylcyclopentene, dimethylcyclopentene, cyclohexene, methylcyclohexene, dimethylcyclohexene, trimethylcyclohexene, tetramethylcyclohexene, cyclooctene, methylcyclooctene, dimethylcyclooctene, tetramethylcyclooctene, and the like. Cyclic monoolefin groups such as cyclodecene, cyclododecene, norbornene; in molecules such as cyclobutadiene, cyclohexadiene, cyclooctadiene, cyclooctatriene, cyclooctatetraene, cyclodecadiene, cyclodecatorien, cyclodecaterene, norbornadiene Examples thereof include a cyclic polyene group having two or more unsaturated groups.

Specific examples of the acyclic olefin group include acyclic (chain) monoolefin groups such as ethylene, propylene, butene, isobutene, pentene, hexene, octene, decene, and undecene; butadiene, 2-methylbutadiene, pentadiene, and methylpentadiene. , Dimethylpentadiene, hexadiene, hexatriene, octadiene, octatriene, octatetraene, decadiene, decatryen, decatetraene and the like, acyclic (chain) polyene groups having two or more unsaturated groups in the molecule.

Specific examples of the cyclic olefinyl group include cyclobutenyl group, cyclopentenyl group, methylcyclopentenyl group, dimethylcyclopentenyl group, cyclohexenyl group, methylcyclohexenyl group, dimethylcyclohexenyl group, trimethylcyclohexenyl group and tetramethylcyclohexenyl group. , Cyclooctenyl group, methylcyclooctenyl group, dimethylcyclooctenyl group, tetramethylcyclooctenyl group, cyclodecenyl group, norbonyl group and other monoolefinyl groups, cyclobutadienyl group, cyclohexadienyl group, cyclooctadienyl Intramolecular, excluding cyclopentadienyl groups such as group, cyclooctatrienyl group, cyclooctatetraenyl group, cyclodecadienyl group, cyclodecatrienyl group, cyclodecatetraenyl group, norbornazienyl group Examples thereof include a cyclic polyenyl group having two or more unsaturated groups.

Specific examples of the acyclic olefinyl group include a non-cyclic (chain) monoolefinyl group such as a vinyl group, an allyl group, a metalyl group, a butenyl group, an isobutenyl group, a pentenyl group, a hexenyl group, an octenyl group and a decenyl group; butadienyl. Group, methylbutadienyl group, dimethylbutadienyl group, pentadienyl group, methylpentadienyl group, dimethylpentadienyl group, hexadienyl group, hexatrienyl group, octadienyl group, octatrienyl group, octatetraenyl group, Examples thereof include an acyclic (chain) polyenyl group having two or more unsaturated groups in the molecule such as a decazienyl group, a decatrienyl group, and a decatetraenyl group.

In addition, each of the above-mentioned ligands is a halogen atom partially selected from fluorine, chlorine, bromine, iodine; methoxy group, ethoxy group, propoxy group, butoxy group, pentoxy group, hexoxy group, octyloxy group, decyloxy group and the like. Alkoxy group; It may be substituted with an alkyl halide group such as trifluoromethyl, pentafluoroethylene, trifluoropropyl, nonafluorobutyl, trichloromethyl and trichloropropyl group.
Further, a part of the carbon atom in the ligand X may be replaced with any one of nitrogen, phosphorus, bismuth, silicon and germanium element.

The bond between Fe and the carbon atom in the ligand X may be a covalent bond alone, a coordination bond alone, or both.
In particular, as the iron complex of the formula (1), Fe is preferably bonded only to carbon atoms contained in the ligand X, and the total number of bonds thereof is preferably 2 to 10, and the ligand X is not present in the molecule. It is an iron complex consisting only of a ligand having a saturated group.
Of these, a dinuclear complex in which the ligand X is an aryl group and the total number of bonds between Fe and the carbon atoms contained in the ligand X is 2. Is preferable.

Further, a mononuclear complex having a total number of bonds of Fe and carbon atoms contained in the ligand X of 6 to 10, preferably 10, is also suitable.
In this case, the ligand X is preferably selected from a cyclic olefin having 1 to 5 unsaturated groups in the molecule, an acyclic olefin, a cyclic olefinyl group, and an acyclic olefinyl group, and two or more in the molecule. More preferably, it is selected from a cyclic polyene having an unsaturated group, an acyclic polyene, a cyclic polyenyl group, and an acyclic polyenyl group. The two or more unsaturated groups present in the molecule may or may not be continuous.

On the other hand, the two-electron ligand (L) is one in which two electrons contained in the ligand coordinate to Fe.
The two-electron ligand is not particularly limited, and any ligand conventionally used as the two-electron ligand of the metal complex can be used, but typically carbon monoxide ( Carbonyl group); amine compounds, imine compounds, nitrogen-containing heterocyclic compounds, phosphine compounds, alcine compounds, alcohol compounds, thiol compounds, ethers, including unshared electron pairs (unpaired electrons) such as nitrogen, phosphorus, oxygen, and sulfur. Compounds such as compounds, sulfide compounds and carben; compounds such as aldehyde compounds, ketone compounds, nitrile compounds and isocyanides containing both unpaired electrons and π electrons can be mentioned, but those other than carbon monoxide are preferable and contain nitrogen. Heterocyclic compounds, carben compounds and isocyanide compounds are more preferred.

The amine compounds include tertiary amines represented by R ₃ N.
Here, R is an alkyl group, an aryl group, or an aralkyl group which may be substituted with a halogen atom, a hydroxyl group, or an alkoxy group independently of each other. Specific examples of these halogen atoms, alkyl groups, aryl groups, and aralkyl groups. Examples include the same as those exemplified above.
The number of carbon atoms of the alkoxy group is not particularly limited, but it is preferably 1 to 10 carbon atoms, and specific examples thereof include methoxy, ethoxy, n-propoxy, i-propoxy, n-butoxy, and the like. Examples thereof include i-butoxy, s-butoxy, t-butoxy, n-pentoxy, n-hexoxy, n-heptyloxy, n-octyloxy, n-nonyloxy, n-decyloxy group and the like.

Examples of the imine compound include those represented by RC (= NR) R (R represents the same meaning as described above independently of each other).
Examples of the phosphine compound include those represented by R ₃ P (R represents the same meaning as described above independently of each other).
Examples of the arsine compound include those represented by R ₃ As (R represents the same meaning as described above independently of each other).

Examples of the alcohol compound include those represented by ROH (R has the same meaning as described above).
Examples of the thiol compound include those in which the oxygen atom of the alcohol is replaced with a sulfur atom.
Examples of the ether compound include those represented by ROR (R represents the same meaning as described above independently of each other).
Examples of the sulfide compound include those in which the oxygen atom of the ether is replaced with a sulfur atom.

Examples of the ketone compound include those represented by RCOR (R represents the same meaning as described above independently of each other).
Examples of the nitrile compound include those represented by RCN (R has the same meaning as described above).

The isocyanide compound is not particularly limited, but in the present invention, a compound represented by Y-NC (formula (2)) is preferable.
Here, Y represents a monovalent organic group having 1 to 30 carbon atoms which may be substituted and may be interspersed with one or more atoms selected from oxygen, nitrogen, sulfur and phosphorus.
The monovalent organic group having 1 to 30 carbon atoms is not particularly limited, but a monovalent hydrocarbon group having 1 to 30 carbon atoms is preferable.
Examples of the monovalent hydrocarbon group include an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group and the like, and specific examples of these alkyl group, aryl group and aralkyl group are the same as those exemplified above. Things can be mentioned.
As the alkenyl group, an alkenyl group having 2 to 20 carbon atoms is preferable, and specific examples thereof include ethenyl, n-1-propenyl, n-2-propenyl, 1-methylethenyl, n-1-butenyl, and n-2-. Butenyl, n-3-butenyl, 2-methyl-1-propenyl, 2-methyl-2-propenyl, 1-ethylethenyl, 1-methyl-1-propenyl, 1-methyl-2-propenyl, n-1-pentenyl, Examples thereof include n-1-decenyl, n-1-eicosenyl group and the like.
The alkynyl group is preferably an alkynyl group having 2 to 20 carbon atoms, and specific examples thereof include ethynyl, n-1-propynyl, n-2-propynyl, n-1-butynyl, n-2-butynyl, and n-. 3-Butynyl, 1-Methyl-2-propynyl, n-1-pentynyl, n-2-pentynyl, n-3-pentynyl, n-4-pentynyl, 1-methyl-n-butynyl, 2-methyl-n- Butynyl, 3-methyl-n-butynyl, 1,1-dimethyl-n-propynyl, n-1-hexynyl, n-1-decynyl, n-1-pentadecynyl, n-1-eicosynyl group and the like can be mentioned.

Further, the monovalent organic group having 1 to 30 carbon atoms may have a substituent, or may have a plurality of the same or different substituents at arbitrary positions.
Specific examples of the substituent include the above-mentioned various halogen atoms such as a fluorine atom and a chlorine atom, an alkoxy group such as a methoxy group, an ethoxy group and a propoxy group, and an amino group such as a dialkylamino group.

Specific examples of the isocyanide compound that can be suitably used as a ligand in the present invention include methyl isocyanide, ethyl isocyanide, n-propyl isocyanide, cyclopropyl isocyanide, n-butyl isocyanide, isobutyl isocyanide, sec-butyl isocyanide, and t-butyl. Alkyl isocyanides such as isocyanide, n-pentyl isocyanide, isopentyl isocyanide, neopentyl isocyanide, n-hexyl isocyanide, cyclohexyl isocyanide, cycloheptyl isocyanide, 1,1-dimethylhexyl isocyanide, 1-adamantyl isocyanide, 2-adamantyl isocyanide; Isocyanide, 2-methylphenylisocyanide, 4-methylphenylisocyanide, 2,4-dimethylphenylisocyanide, 2,5-dimethylphenylisocyanide, 2,6-dimethylphenylisocyanide, 2,4,6-trimethylphenylisocyanide, 2, Aryl isocyanides such as 4,6-trit-butylphenylisocyanide, 2,6-diisopropylphenylisocyanide, 1-naphthylisocyanide, 2-naphthylisocyanide, 2-methyl-1-naphthylisocyanide; benzylisocyanide, phenylethylisocyanide and the like. Examples include, but are not limited to, aralkyl isocyanide.

The carbene compound is not particularly limited, but in the present invention, the one represented by the formula (3) is preferable.

In formula (3), Z represents a carbon atom, a nitrogen atom or an oxygen atom, and when Z is a carbon atom, b is 3, when Z is a nitrogen atom, b is 2, and Z is an oxygen atom. When, b is 1.
R ¹ and R ² represent an alkyl group having 1 to 30 carbon atoms, an aryl group or an aralkyl group, which may be substituted with a halogen atom or an alkoxy group independently of each other, but with any one of R ^1. , R ² may be bonded to form a divalent organic group to form a cyclic structure, and in this case, a nitrogen atom and / or an unsaturated bond may be contained in the cyclic structure. ..
Specific examples of the halogen atom, the alkyl group having 1 to 30 carbon atoms, the aryl group, and the aralkyl group, and the alkoxy group include the same groups as those exemplified above.
Preferably, it is a cyclic carbene compound represented by the formula (4).

Here, A is a divalent organic group having 2 to 5 carbon atoms which may contain a nitrogen atom and / or an unsaturated bond, and specific examples thereof include a methylene group, an ethylene group, a propylene group and a trimethylene group. , N-butylene group, isobutylene group, s-butylene group, vinylene group, propa-1-ene-1,3-diyl (propenylene) group and the like.
Specific examples of the cyclic carbene compound include, but are not limited to, the following compounds.

In addition, a hydrosilylation reaction can be carried out while generating a carbene compound in the system by reacting a precursor imidazolium salt with a base such as KOtBu.
Specific examples of the imidazolium salt as a precursor include, but are not limited to, the following compounds.

Examples of the nitrogen-containing heterocyclic compound include pyrrole, imidazole, pyridine, terpyridine, bisiminopyridine, pyrimidine, oxazoline, isooxazoline and the like, and in particular, the bisiminopyridine compound represented by the formula (5) and the formula ( The terpyridine compound represented by 6) is preferable.

Here, R ¹⁰ is an alkyl group having 1 to 10 carbon atoms which may be hydrogen atom or substituted independently of each other, and specific examples of the alkyl group include the same groups as those exemplified above. ..
Specific examples of the bisiminopyridine compound include 2,6-bis [1- (2,6-dimethylphenylimino) ethyl] pyridine and 2,6-bis [1- (2,6-diethylphenylimino) ethyl]. Examples thereof include pyridine, 2,6-bis [1- (2,6-diisopropylphenylimino) ethyl] pyridine and the like.
Specific examples of the terpyridine compound include 2,2': 6', 2 "-terpyridine and the like.

In preparing the hydrosilylated iron catalyst of the present invention, the amount of the iron complex as a precursor and the two-electron ligand used is not particularly limited, but the two-electron ligand is reduced to one equivalent of the iron complex. On the other hand, it is preferably about 0.5 to 10 equivalents, more preferably 1 to 6 equivalents, and even more preferably 1 to 3 equivalents.
Further, when the hydrosilylation reaction is carried out using the hydrosilylated iron catalyst of the present invention, the amount of the catalyst used is not particularly limited, but the reaction is allowed to proceed under mild conditions of about room temperature to 100 ° C. Considering that the desired product can be obtained efficiently, it is preferable to use 0.1 mol% or more as the metal compound, and 0.5 mol% or more, with respect to 1 mol of the aliphatic unsaturated group-containing compound as the substrate. More preferred.
The amount of the metal compound used is not particularly limited, but from an economical point of view, it is about 10 mol%, preferably 5 mol%, based on 1 mol of the substrate.

The hydrosilylated iron catalyst of the present invention can be used after isolating the iron complex as a precursor and the iron complex catalyst prepared from the two-electron ligand, but without isolating it, that is, an aliphatic unsaturated bond. In a system in which a compound having a Si—H group and a hydrosilane compound or an organohydropolysiloxane compound having a Si—H group are hydrosilylated, they may be prepared from an iron complex as a precursor and a two-electron ligand. From the viewpoint of simplification of operation and the like, it is preferable to prepare and use it in the system without isolation.
At this time, once a catalyst is prepared from an iron complex as a precursor and a two-electron ligand, a compound having an aliphatic unsaturated bond and a hydrosilane compound or an organohydropolysiloxane compound having a Si—H group are added. However, it may be prepared separately for each of several components, or all the components may be charged at once.

The reaction conditions between the iron complex as a precursor and the two-electron ligand are not particularly limited, but the reaction temperature is usually about 10 to 100 ° C., preferably 20 to 80 ° C., and the reaction time is long. , 1 to 48 hours.
An organic solvent can be used during the catalyst preparation and the hydrosilylation reaction, but in the present invention, it is preferably performed without a solvent.
When an organic solvent is used, the type is arbitrary as long as it does not affect the reaction, and for example, aliphatic hydrocarbons such as pentane, hexane, heptane, octane and cyclohexane; diethyl ether, diisopropyl ether, dibutyl ether and cyclopentyl. Ethers such as methyl ether, tetrahydrofuran and 1,4-dioxane; aromatic hydrocarbons such as benzene, toluene, xylene and mesitylene can be used.

In the hydrosilylation reaction using the hydrosilylated iron catalyst of the present invention, a Si—H bond is formed with a compound having an aliphatic unsaturated bond such as an olefin compound, a silane compound or an organopolysiloxane compound, which contains an aliphatic unsaturated bond. As long as it is combined with a silane compound or an organopolysiloxane compound, the structure of each of these compounds can be used without any limitation.
Further, the hydrosilylation reaction using the hydrosilylated iron catalyst of the present invention is a silane coupling agent obtained from an olefin compound having an aliphatic unsaturated bond and a silane compound having a Si—H bond, and an olefin having an aliphatic unsaturated bond. In addition to modified silicone oils obtained from an organopolysiloxane having a Si—H bond with a compound, a cured silicone product obtained from an organopolysiloxane compound having an aliphatic unsaturated bond and an organopolysiloxane having a Si—H bond, etc. , Can be used for all industrial applications using conventional platinum catalysts.

Hereinafter, the present invention will be described in more detail with reference to synthetic examples, examples and comparative examples, but the present invention is not limited to the following examples.
For the synthesis of the metal complex, all operations are performed in a nitrogen or argon atmosphere using a Schlenk technique or a glove box, and all the solvents used for preparing the metal compound are used after deoxidizing and dehydrating by a known method. There was.
The hydrosilylation reaction of the alkene and the solvent purification were all carried out in an inert gas atmosphere, and all the solvents and the like used for the various reactions were purified, dried and deoxidized by a known method in advance.
¹ H, ¹³ C-NMR measurement is JNM-ECA600, JNM-LA400 manufactured by JEOL Ltd., IR measurement is FT / IR-550 manufactured by JASCO Corporation, and elemental analysis is 2400II / CHN manufactured by Perkin Elmer. X-ray crystal structure analysis was performed using VariMax manufactured by Rigaku Corporation and MoKα ray 0.71069 angstrom, respectively.
In the chemical structural formula shown below, the hydrogen atom is omitted according to the conventional expression. NHC also refers to N-heterocyclic carbene.

(1) Synthesis of metal compounds [Synthesis Example 1] Synthesis of [Fe (mesitylene) (μ-mesityl)] ₂ Organometallics, 1993, 12, 2414. Was synthesized by the following method with reference to.
To a 50 mL two-necked eggplant flask, 1.08 g (44.3 mmol) of magnesium ribbon and 35 mL of THF were added, and 8.49 g (42.6 mmol) of bromomesitylene was slowly added dropwise thereto. After the dropping, it was confirmed that the heat generation had subsided, and the mixture was stirred at 60 ° C. for 3 hours. The obtained solution was filtered through a glass filter to prepare a THF solution of mesitylmagnesium bromide Grignard reagent.
To a 100 mL Schlenk tube, 2.63 g (20.7 mmol) of FeCl ₂ , 30 mL of THF, and 10 mL of 1,4-dioxane were added, and the mixture was cooled to −78 ° C. A THF solution of the magnesium bromide Grignard reagent prepared above was slowly added thereto, and the mixture was stirred at 25 ° C. for 2 hours. At this time, the reaction solution changed from a brown suspension to a red suspension. Then, the precipitated solid was removed by centrifugation and dried under reduced pressure. The obtained red solid was dissolved in diethyl ether, and the solid was removed by centrifugation again and then recrystallized at −30 ° C. to obtain crystals (4.36 g, yield 72%). The obtained crystals were identified by ¹ H-NMR measurement in C ₆ D ₆ .
^{1 1} H-NMR (600 MHz, C ₆ D ₆ ) δ: 23.68 (s, 2H), 23.17 (s, 2H), 21.44 (s, 3H), 17.94 (s, 3H), 10.19 (s, 6H), -6.66 (s, 6H).

[Synthesis Example 2] Synthesis of biscyclooctatetraene iron Biscyclooctatetraene iron was synthesized by the following method with reference to non-patent documents (Inorganic Syntheses, 1974, 15, 2).
To a 100 mL Schlenk tube, 1.0 g (2.9 mmol) of triacetylacetonate iron, 20 mL of diethyl ether, and 2.0 g (19.3 mmol) of cyclooctatetraene were added, and the mixed solution was cooled to −78 ° C. 10 mL of a hexane solution of triethylaluminum (1.0 M) was slowly added dropwise thereto, and after the entire amount was added dropwise, the mixture was stirred at −10 ° C. for 2 hours. Then, after stirring at room temperature for 30 minutes, the mixture was cooled again to −78 ° C. and crystals were precipitated over 3 hours. The supernatant was removed, and the obtained crystals were dissolved in diethyl ether again and recrystallized at -30 ° C to obtain black crystals of biscyclooctatetraene iron (hereinafter abbreviated as Fe (COT) ₂ ) (hereinafter abbreviated as Fe (COT) ₂ ). 0.47 g, yield 62%). The obtained crystals were identified by ¹ H-NMR measurement in C ₆ D ₆ .
^{1 1} H-NMR (600 MHz, C ₆ D ₆ ) δ: 5.05 (s, 16H).

[Synthesis Example 3] Synthesis of bis (3-methylpentadienyl) iron Bis (3-methylpentadienyl) iron can be prepared by the following method with reference to non-patent documents (Organometallics, 1983, 2, 1220-1228). Synthesized.
To a 50 mL 2-port eggplant flask, 1.37 g (12.2 mmol) of t-butoxypotassium, 20 mL of hexane, and 7.3 mL (12.2 mmol) of a 1.67 Mn-butyllithium hexane solution were added and stirred. To this, 1.05 g (12.8 mmol) of 3-methylpentadiene was added, and the mixture was stirred at room temperature for 1 hour. The reaction solution changed from white to red, forming a precipitate. Then, the supernatant was removed, washed with hexane, and dried under reduced pressure. This was dissolved in 20 mL of THF to prepare a THF solution of 3-methylpentadienyl potassium.
To a 50 mL Schlenk tube, 0.78 g (6.2 mmol) of FeCl ₂ and 5 mL of THF were added, and the mixture was cooled to −78 ° C. The THF solution of 3-methylpentadienyl potassium prepared above was slowly added dropwise thereto, and after the addition, the mixture was stirred at room temperature for 16 hours. Then, it was dried under reduced pressure, dissolved in pentane, filtered through Celite, and recrystallized at −78 ° C. Further, the obtained red solid was sublimated and purified under reduced pressure at 50 ° C. to obtain a red solid of bis (3-methylpentadienyl) iron (hereinafter abbreviated as (MPDE) ₂ Fe) (0.10 g, Yield 8%). The resulting solid was identified in ¹ H-NMR spectrum in C ₆ D ₆ .
^{1 1} H-NMR (600MHz, C ₆ D ₆ ) δ: 0.34 (d, J = 9.6Hz, 4H), 1.69 (s, 6H), 2.87 (d, J = 8.2Hz, 4H), 3.80 (t, J = 9.6Hz, 4H).

[Synthesis Example 4] Synthesis of bis (2,4-dimethylpentadienyl) iron For bis (2,4-dimethylpentadienyl) iron, refer to non-patent documents (Organometallics, 1983, 2,1220-1228). , Synthesized by the following method.
To a 50 mL 2-port eggplant flask, 1.19 g (10.6 mmol) of t-butoxypotassium, 5 mL of hexane, and 6.5 mL (10.9 mmol) of a 1.67 Mn-butyllithium hexane solution were added and stirred. To this, 1.00 g (10.4 mmol) of 2,4-dimethylpentadiene was added, and the mixture was stirred at room temperature for 1 hour. The reaction solution changed from white to red and a precipitate was formed. Then, the supernatant was removed, washed with hexane, and dried under reduced pressure. This was dissolved in 20 mL of THF to prepare a THF solution of 2,4-dimethylpentadienyl potassium.
To a 50 mL Schlenk tube, 0.63 g (5.0 mmol) of FeCl ₂ and 5 mL of THF were added, and the mixture was cooled to −78 ° C. The THF solution of 2,4-dimethylpentadienyl potassium prepared above was slowly added dropwise thereto, and after the addition, the mixture was stirred at room temperature for 21 hours. Then, it was dried under reduced pressure, dissolved in pentane, filtered through Celite, and recrystallized at −78 ° C. Further, the obtained red solid was sublimated and purified under reduced pressure at 50 ° C. to obtain a red solid of bis (2,4-dimethylpentadienyl) iron (hereinafter abbreviated as (DMPDE) ₂ Fe) (0. 30 g, yield 25%). The resulting solid was identified in ¹ H-NMR spectrum in C ₆ D ₆ .
^{1 1} H-NMR (600 MHz, C ₆ D ₆ ) δ: 0.28 (br, 4H), 1.82 (br, 12H), 2.65 (br, 4H), 4.35 (br, 2H).

Synthesis 20mL Schlenk tube Synthesis Example 5] iron complex _{A, Fe (COT) 2 17mg} (0.07mmol), pentane 12 mL, t-butyl isocyanide (hereinafter, abbreviated as tBuNC) 7mg of (0.08 mmol) was added The mixture was stirred at room temperature for 8 hours. Then, the solution was filtered and recrystallized at −30 ° C. to obtain black crystals (11 mg, yield 48%). The obtained crystals were identified by X-ray single crystal structure analysis, elemental analysis, and NMR measurement. The structure of the obtained iron complex A is shown in FIG. 1, the measurement result of ^{1 1} H-NMR is shown in FIG. 2, and the measurement result of ¹³ C-NMR is shown in FIG.
^{1 1} H-NMR (600 MHz, C ₆ D ₆ ) δ: 1.19 (s, 9H), 4.48 (br, 16H).
¹³ C-NMR (151 MHz, C ₆ D ₆ ) δ: 31.1, 55.6, 100.9 (br), 166.5.

[Synthesis Example 6] Synthesis of Iron Complex B 50 mg (0.19 mmol) of Fe (COT), ₂ mL of toluene, and 33 mg (0.21 mmol) of 1-isocyanoadamantane (hereinafter abbreviated as AdNC) were added to a 20 mL Schlenk tube. The mixture was stirred at room temperature for 1 hour. Then, the solution was filtered, pentane was added, and the mixture was recrystallized at −30 ° C. to obtain black crystals (50 mg, yield 62%). The obtained crystals were identified by X-ray single crystal structure analysis, elemental analysis, and NMR measurement. The structure of the obtained iron complex B is shown in FIG. 4, the measurement result of ^{1 1} H-NMR is shown in FIG. 5, and the measurement result of ¹³ C-NMR is shown in FIG.
^{1 1} H-NMR (600 MHz, C ₆ D ₆ ) δ: 1.37 (br, 6H), 1.79 (s, 3H), 1.97 (s, 6H), 4.52 (br, 16H).
¹³ C-NMR (151 MHz, C ₆ D ₆ ) δ: 29.3, 35.8, 44.4, 55.7, 101.0 (br), 166.6.

[Synthesis Example 7] Synthesis 20mL Schlenk tube iron complex _{C Fe (COT) 2 42mg (} 0.16mmol), pentane 4 mL, added tBuNC54mg (0.65mmol), and stirred at room temperature for 8 hours. The solution was then filtered and recrystallized at −30 ° C. to give red crystals (32 mg, 50% yield). The obtained crystals were identified by X-ray single crystal structure analysis, elemental analysis, and NMR measurement. The structure of the obtained iron complex C is shown in FIG. 7, the measurement result of ^{1 1} H-NMR is shown in FIG. 8, and the measurement result of ¹³ C-NMR is shown in FIG.
^{1 1} H-NMR (600 MHz, C ₆ D ₆ ) δ: 1.07 (s, 27H), 5.37 (br, 8H).
¹³ C-NMR (151 MHz, C ₆ D ₆ ) δ: 31.5, 55.9, 97.0 (br), 183.6.

Synthesis 20mL Schlenk tube Synthesis Example 8] iron complex _{D, Fe (COT) 2 100mg} (0.38mmol), toluene 4 mL, added AdNC185mg (1.15mmol), and stirred at room temperature for 1 hour. The solution was then filtered, pentane was added and recrystallized at −30 ° C. to give red crystals (168 mg, 62% yield). The obtained crystals were identified by X-ray single crystal structure analysis, elemental analysis, and NMR measurement. The structure of the obtained iron complex D is shown in FIG. 10, the measurement result of ^{1 1} H-NMR is shown in FIG. 11, and the measurement result of ¹³ C-NMR is shown in FIG.
^{1 1} H-NMR (600 MHz, C ₆ D ₆ ) δ: 1.32 (br, 18H), 1.72 (s, 9H), 1.86 (s, 18H), 5.46 (br, 8H).
¹³ C-NMR (151 MHz, C ₆ D ₆ ) δ: 29.5, 35.8, 45.1, 56.4, 97.1, 183.8.

(2) Hydrosilylation of 1-octene with 1,1,3,3,3-pentamethyldisiloxane using various isocyanide ligands

[Example 1] Hydrosilylation of 1-octene with 1,1,3,3,3-pentamethyldisiloxane using an isocyanide ligand [Fe (mesitylene) (μ) synthesized in Synthesis Example 1 in a screw vial. −Mesitylene] ₂ 15 mg (0.025 mmol), tBuNC 11 μL (0.10 mmol), 1,1,3,3,3-pentamethyldisiloxane 98 μL (0.5 mmol), 1-octene 78 μL (0.5 mmol) In addition, after sealing, the mixture was stirred at 80 ° C. for 16 hours.
After cooling, 1.0 mmol of anisole as an internal standard was added to the reaction solution and stirred, and then a very small amount was dissolved in deuterated chloroform, the catalyst was removed through an alumina column, and ^{1 1} H-NMR spectrum was measured to measure the structure of the product. And the yield was determined. In the examples shown below, a measurement sample was prepared in the same manner in this procedure, and ^{1 1} H-NMR spectrum was measured. As a result, it was confirmed that the signal at the ethylene site of 1-octene, which is the raw material, completely disappeared. Then, multiple lines around 0.50 ppm, which is a signal of a proton on the carbon adjacent to silicon in the target product 1,1,1,3,3-pentamethyl-3-octyldisiloxane, were confirmed, and the yield was determined. I asked. The results are shown in Table 1.
^{1 1} H-NMR (396MHz, CDCl ₃ ) δ: 0.03 (s, 6H), 0.06 (s, 9H), 0.50 (t, J = 7.7Hz, 2H), 0.88 (t) , J = 6.8Hz, 3H), 1.19-1.34 (br, 12H).

[Example 2] Hydrosilylation of 1-octene with 1,1,3,3,3-pentamethyldisiloxane using an NHC ligand [Fe (mesitylene) (μ) synthesized in Synthesis Example 1 in a screw vial. _{-mesityl)] 2 8mg (0.015mmol)} , 1,3- dimesityl-2-ylidene 18mg (0.06mmol), 1,1,3,3,3- pentamethyl disiloxane 254μL (1.3mmol ), 1-octene 157 μL (1.0 mmol) was added, and after sealing, the mixture was stirred at 80 ° C. for 24 hours.
After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, the multiple lines around 0.50 ppm, which is the signal of the target product, were confirmed, and the yield was determined. The results are shown in Table 1.

(3) Hydrosilylation of styrene using isocyanide as a ligand with 1,1,3,3,3-pentamethyldisiloxane 1

[Examples 3 to 10]
A screw vial, synthesized in Synthesis Example _{2 Fe (COT) 2 8mg (} 0.03mmol), described in Table 2 of various isocyanide 0.06 mmol, 1,1,3,3,3 pentamethyl disiloxane 254μL (1. 3 mmol) and 115 μL (1.0 mmol) of styrene were added, and the mixture was sealed and stirred at 80 ° C. for 3 hours. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, multiple lines around 0.89 ppm, which is a signal of a proton on the carbon adjacent to silicon in the target product 1,1,1,3,3-pentamethyl-3-phenethyldisiloxane, were confirmed, and the yield was determined. I asked. The results are shown in Table 2.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.07 (s, 6H), 0.09 (s, 9H), 0.86-0.92 (m, 2H), 2.61-2.68 (M, 2H), 7.13-7.33 (m, 5H).

(4) Hydrosilylation of various alkenes using tBuNC ligand with 1,1,3,3,3-pentamethyldisiloxane 1

[Example 11] Hydrosilylation of styrene with 1,1,3,3,3-pentamethyldisiloxane (change of reaction conditions in Example 3)
A screw vial, synthesized in Synthesis Example _{2 Fe (COT) 2 8mg (} 0.03mmol), tBuNC7μL (0.06mmol), 1,1,3,3,3- pentamethyl disiloxane 254μL (1.3mmol), 115 μL (1.0 mmol) of styrene was added, and after sealing, the mixture was stirred at 50 ° C. for 23 hours. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, the multiple lines around 0.89 ppm, which is the signal of the target product, were confirmed, and the yield was determined. The results are shown in Table 3.

[Example 12] Hydrosilylation of 4-methoxystyrene with 1,1,3,3,3-pentamethyldisiloxane Example 11 except that 134 μL (1.0 mmol) of 4-methoxystyrene was used instead of styrene. The reaction was carried out in the same procedure as above. As a result, it was confirmed that the signal of the ethylene moiety of 4-methoxystyrene as a raw material was completely eliminated. Then, a multiplex line of 0.89 ppm, which is a signal of a proton on the carbon adjacent to silicon in the target product 1- (4-methoxyphenylethyl) -1,1,3,3,3-pentamethyldisiloxane, was confirmed. The yield was determined. The results are shown in Table 3.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.06 (s, 6H), 0.08 (s, 9H), 0.83-0.89 (m, 2H), 2.56-2.62 (M, 2H), 3.79 (s, 3H), 6.82 (d, J = 8.2Hz, 2H), 7.12 (d, J = 8.2,2H).

[Example 13] Hydrosilylation of 4-t-butylstyrene with 1,1,3,3,3-pentamethyldisiloxane Except for the use of 180 μL (1.0 mmol) of 4-t-butylstyrene instead of styrene. , The reaction was carried out in the same procedure as in Example 11. As a result, it was confirmed that the signal of the ethylene moiety of 4-t-butylstyrene, which is a raw material, completely disappeared. Then, multiple lines around 0.89 ppm, which is a signal of a proton on carbon adjacent to silicon in the target product, were confirmed, and the yield was determined. The results are shown in Table 3.
Then, the reaction solution was purified by silica gel column chromatography (developing solvent hexane: ethyl acetate = 10: 1 (v / v)) and 1- (4- (t-butyl) phenylethyl) -1,1,3. 3,3-Pentamethyldisiloxane was obtained (302 mg, isolation yield 99%).
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.08 (s, 6H), 0.08 (s, 9H), 0.85-0.92 (m, 2H), 2.58-2.65 (M, 2H), 7.10-7.16 (m, 2H), 7.21-7.29 (m, 2H).
¹³ C-NMR (99MHz, CDCl ₃ ) δ: 0.5, 2.1, 20.5, 29.0, 128.5, 129.3, 131.3, 143.8.

[Example 14] Hydrosilylation of 4-chlorostyrene with 1,1-3,3,3-pentamethyldisiloxane Example 11 except that 127 μL (1.0 mmol) of 4-chlorostyrene was used instead of styrene. The reaction was carried out in the same procedure as above. As a result, it was confirmed that the signal of the ethylene moiety of 4-chlorostyrene as a raw material was completely eliminated. Then, a multi-line of 0.85 ppm, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield thereof was determined. The results are shown in Table 3.
Then, the reaction solution was purified by silica gel column chromatography (developing solvent hexane) to obtain 1- (4-chlorophenylethyl) -1,1,3,3,3-pentamethyldisiloxane (246 mg, isolated yield). Rate 86%).
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.07 (s, 6H), 0.08 (s, 9H), 0.82-0.88 (m, 2H), 1.31 (s, 9H) ), 2.58-2.64 (m, 2H), 7.12-7.16 (m, 2H), 7.29-7.32 (m, 2H).
¹³ C-NMR (99MHz, CDCl ₃ ) δ: 0.4, 2.2, 20.4, 28.9, 31.6, 34.5, 125.3, 127.6, 142.3, 148. 4.

[Example 15] Hydrosilylation of 4-fluorostyrene with 1,1,3,3,3-pentamethyldisiloxane Example 11 except that 119 μL (1.0 mmol) of 4-fluorostyrene was used instead of styrene. The reaction was carried out in the same procedure as above. As a result, it was confirmed that the signal of the ethylene moiety of 4-fluorostyrene as a raw material was completely eliminated. Then, a multi-line of 0.86 ppm, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield was determined. The results are shown in Table 3.
Then, the reaction solution was purified by silica gel column chromatography (developing solvent hexane: ethyl acetate = 10: 1 (v / v)) and 1- (4-fluorophenylethyl) -1,1,3,3-3. Pentamethyldisiloxane was obtained (241 mg, isolated yield 89%).
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.07 (s, 6H), 0.08 (s, 9H), 0.83-0.89 (m, 2H), 2.59-2.65 (M, 2H), 6.92-6.98 (m, 2H), 7.12-7.17 (m, 2H).
¹³ C-NMR (99 MHz, CDCl ₃ ) δ: 0.5, 2.2, 20.7, 28.8, 115.0, 115.2, 129.2, 129.2, 140.9, 140. 9, 160.0, 162.5.

[Example 16] Hydrosilylation of ethyl 4-vinylbenzoate with 1,1,3,3,3-pentamethyldisiloxane Except for the use of 176 mg (1.0 mmol) of ethyl 4-vinylbenzoate in place of styrene. , The reaction was carried out in the same procedure as in Example 11. As a result, it was confirmed that the signal of the ethylene moiety of ethyl 4-vinylbenzoate, which is a raw material, completely disappeared. Then, a multi-line of 0.89 ppm, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield thereof was determined. The results are shown in Table 3.
Then, the reaction solution was purified by silica gel column chromatography (developing solvent hexane: ethyl acetate = 30: 1 (v / v)) and 2- (1,1,1,3,3-pentamethyldisyloxanyl). Ethyl-4-benzoate was obtained (313 mg, isolated yield 96%).
^{1 1} H-NMR (396MHz, CDCl ₃ ) δ: 0.08 (s, 6H), 0.08 (s, 9H), 0.84-0.91 (m, 2H), 1.39 (t, J) = 7.2Hz, 3H), 2.66-2.72 (m, 2H), 4.36 (q, J = 7.2Hz, 2H), 7.26 (d, J = 7.2Hz, 2H) , 7.95 (d, J = 7.2Hz, 2H).
¹³ C-NMR (99 MHz, CDCl ₃ ) δ: 0.3, 2.0, 14.3, 20.1, 29.6, 60.7, 127.8, 127.9, 129.6, 150. 7, 166.7.

[Example 17] Hydrosilylation of 2-vinylnaphthalene with 1,1,3,3,3-pentamethyldisiloxane Example 11 except that 154 mg (1.0 mmol) of 2-vinylnaphthalene was used instead of styrene. The reaction was carried out in the same procedure as above. As a result, it was confirmed that the signal of the ethylene moiety of 2-vinylnaphthalene, which is a raw material, disappeared completely. Then, a 0.98 ppm multiplex line, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield was determined. The results are shown in Table 3.
Then, the reaction solution was purified by silica gel column chromatography (developing solvent hexane) to obtain 1,1,3,3,3-pentamethyl-3- (2- (2-naphthalenyl) ethyl) disiloxane (175 mg, Isolation yield 58%).
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.10 (s, 9H), 0.10 (s, 6H), 0.95-1.02 (m, 2H), 2.78-2.84 (M, 2H), 7.33-7.47 (m, 3H), 7.62 (s, 1H), 7.74-7.82 (m, 3H).
¹³ C-NMR (99MHz, CDCl ₃ ) δ: 0.5, 2.2, 20.4, 29.8, 125.1, 125.6, 126.0, 127.2, 127.5, 127. 7, 127.9, 132.1, 133.9, 142.9.

(5) Hydrosilylation of various alkenes using tBuNC ligand with 1,1,3,3,3-pentamethyldisiloxane 2

[Example 18] Hydrosilylation of 1-octene with 1,1,3,3,3-pentamethyldisiloxane Same as in Example 3 except that 157 μL (1.0 mmol) of 1-octene was used instead of styrene. The reaction was carried out according to the procedure of. As a result, it was confirmed that the signal at the ethylene site of 1-octene, which is the raw material, completely disappeared. Then, a 0.51 ppm multiplex line, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield was determined. The results are shown in Table 4.

[Example 19] Hydrosilylation of 2-octene with 1,1,3,3,3-pentamethyldisiloxane Same as in Example 3 except that 157 μL (1.0 mmol) of 2-octene was used instead of styrene. The reaction was carried out according to the procedure of. As a result, it was confirmed that the signal of the ethylene moiety of 2-octene, which is a raw material, was reduced. Then, a 0.51 ppm multiplex line, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield was determined. The results are shown in Table 4.
^{1 1} H-NMR (396MHz, CDCl ₃ ) δ: 0.03 (s, 6H), 0.06 (s, 9H), 0.50 (t, J = 7.7Hz, 2H), 0.88 (t) , J = 6.8Hz, 3H), 1.19-1.34 (m, 12H).

[Example 20] Hydrosilylation of 1,1,1,3,3-pentamethyl-3-vinyldisiloxane with 1,1,3,3,3-pentamethyldisiloxane 1,1,1, instead of styrene The reaction was carried out in the same procedure as in Example 3 except that 222 μL (1.0 mmol) of 3,3-pentamethyl-3-vinyldisiloxane was used. As a result, it was confirmed that the signal of the ethylene moiety of 1,1,1,3,3-pentamethyl-3-vinyldisiloxane, which is the raw material, completely disappeared. Then, a 0.40 ppm single wire, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield thereof was determined. The results are shown in Table 4.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.40 (s, 4H), 0.06 (s, 18H), 0.04 (s, 12H).

[Example 21] Hydrosilylation of allylbenzene with 1,1,3,3,3-pentamethyldisiloxane The same procedure as in Example 3 except that 133 μL (1.0 mmol) of allylbenzene was used instead of styrene. Reacted in. As a result, it was confirmed that the signal of the ethylene moiety of allylbenzene, which is a raw material, was reduced. Then, a 0.56 ppm multiplex line, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield was determined. The results are shown in Table 4.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.04 (s, 6H), 0.05 (s, 9H), 0.53-0.59 (m, 2H), 1.58-1.69 (M, 2H), 2.62 (t, J = 6.8, 2H), 7.13-7.21 (m, 3H), 7.21-7.27 (m, 2H).

[Example 22] Hydrosilylation of α-methylstyrene with 1,1,3,3,3-pentamethyldisiloxane Example 3 except that 130 μL (1.0 mmol) of α-methylstyrene was used instead of styrene. The reaction was carried out in the same procedure as above. As a result, it was confirmed that the signal of the ethylene moiety of α-methylstyrene, which is a raw material, was reduced. Then, a multi-line of 0.95 ppm, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield thereof was determined. The results are shown in Table 4.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: -0.05 (s, 3H), -0.04 (s, 3H), 0.07 (s, 9H), 1.02-0.91 (m) , 2H), 1.29 (d, J = 6.8Hz, 3H), 2.88-2.97 (m, 1H), 7.14-7.19 (m, 1H), 7.21-7 .23 (m, 2H), 7.26-7.30 (m, 2H).

(6) Hydrosilylation of cyclopentene with 1,1,3,3,3-pentamethyldisiloxane using tBuNC ligand

[Example 23]
Fe (COT) ₂ 26 mg (0.10 mmol) synthesized in Synthesis Example 2, tBuNC 23 μL (0.20 mmol), 1, 1, 3, 3, were placed in a screw vial containing a stirrer in a glove box filled with nitrogen. 254 μL (1.3 mmol) of 3-pentamethyldisiloxane and 88 μL (1.0 mmol) of cyclopentene were added, and the mixture was sealed and stirred at 80 ° C. for 3 hours. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the ethylene moiety of cyclopentene, which is a raw material, was reduced. Then, multiple lines around 0.86 ppm, which is a signal of a proton on carbon adjacent to silicon in the target product, were confirmed, and the yield was determined. The results are shown in Table 5.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.02 (s, 6H), 0.06 (s, 9H), 1.20-1.36 (m, 2H), 0.83-0.92 (M, 1H), 1.50-1.57 (m, 4H), 1.66-1.85 (m, 2H).

(7) Hydrosilylation of styrene with 1,1,3,3,3-pentamethyldisiloxane using tBuNC ligand 2

[Example 24] Reduction of catalyst amount in Example 11 Fe (COT) 23 mg (0.01 mmol) and tBuNC ₂ μL (0) synthesized in Synthesis Example 2 in a screw vial containing a stirrer in a glove box filled with nitrogen. .06 mmol), 1.94 g (13.0 mmol) of 1,1,3,3,3-pentamethyldisiloxane and 1.04 g (10.0 mmol) of styrene were added, and the mixture was stirred at 50 ° C. for 24 hours after sealing. After cooling, ^{1 1} H-NMR spectrum was measured to confirm the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, the multiple lines around 0.89 ppm, which is the signal of the target product, were confirmed, and the yield was determined. The results are shown in Table 6.
Then, the catalyst was removed through an alumina column, and the mixture was distilled and purified at 40 ° C. under reduced pressure (3 Pa) to obtain a transparent solution [2.36 g (9.35 mmol), isolated yield 94%].
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.08 (s, 6H), 0.10 (s, 9H), 0.87-0.93 (m, 2H), 2.62-2.69 (M, 2H), 7.14-7.23 (m, 3H), 7.28 (t, J = 7.2Hz, 2H).
¹³ C-NMR (99MHz, CDCl ₃ ) δ: 0.3, 2.0, 20.4, 29.4, 125.5, 127.8, 128.3, 145.2.

(8) Hydrosilylation of styrene with various hydrosilanes using tBuNC ligand

[Example 25] Hydrosilylation of styrene with dimethylphenylsilane Same as in Example 11 except that 202 μL (1.3 mmol) of dimethylphenylsilane was used instead of 1,1,3,3,3-pentamethyldisiloxane. The reaction was carried out according to the procedure of. As a result, it was confirmed that the signal of the ethylene moiety of styrene, which is the raw material, disappeared completely. Then, a multiplex line of 1.13 ppm, which is a signal of a proton on carbon adjacent to silicon in dimethyl (phenethyl) phenylsilane, which is the target product, was confirmed, and the yield was determined. The results are shown in Table 7.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.29 (s, 6H), 1.10-1.16 (m, 2H), 2.61-2.67 (m, 2H), 7.13 -7.39 (m, 8H), 7.51-7.56 (m, 2H).

[Example 26] Hydrosilylation of styrene with dimethylhydrosilyl both-ended blockage polydimethylsiloxane In a glove box filled with nitrogen, Fe (COT) ₂ 16 mg (0) synthesized in Synthesis Example 2 was placed in a screw vial containing a stir bar. .06 mmol), tBuNC 14 μL (0.12 mmol), dimethylhydrosilyl double-ended closed polydimethylsiloxane (n = 27) 2.77 g (1.3 mmol), styrene 230 μL (2.0 mmol), and sealed at 50 ° C. for 23 hours. Stirred. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the ethylene moiety of styrene, which is the raw material, disappeared completely. Then, a 0.91 ppm multiplex line, which is a signal of a proton on carbon adjacent to silicon in the target product, was confirmed, and the yield was determined. The results are shown in Table 7.
^{1 1} H-NMR (396 MHz, CDCl ₃ ) δ: 0.07 (br), 0.88-0.95 (m, 4H), 2.62-2.69 (m, 4H), 7.13-7 .33 (m, 10H).

(9) Hydrosilylation of various alkenes with 1,1,3,3,3-pentamethyldisiloxane using AdNC ligand

[Example 27]
Fe (COT) 22 mg (0.01 mmol), AdNC ₃ mg (0.02 mmol), 1, 1, 3, 3, synthesized in Synthesis Example 2 in a screw vial containing a stirrer in a glove box filled with nitrogen. 254 μL (1.3 mmol) of 3-pentamethyldisiloxane and 115 μL (1.0 mmol) of styrene were added, and the mixture was sealed and stirred at room temperature for 23 hours. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, the multiple lines around 0.89 ppm, which is the signal of the target product, were confirmed, and the yield was determined. The results are shown in Table 8.

[Examples 28 to 33]
1.0 mmol of various alkenes shown in Table 8 was used instead of styrene, and the reaction was carried out in the same procedure as in Example 27 except that the temperatures shown in Table 8 were changed for Examples 28 and 33. The results are shown in Table 8.

(10) Hydrosilylation of styrene with various hydrosilanes using AdNC ligand

[Example 34] Hydrosilylation of styrene with dimethylphenylsilane The reaction was carried out in the same procedure as in Example 25 except that 10 mg (0.06 mmol) of AdNC was used instead of tBuNC. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, a 1.13 ppm multiplex line, which is a signal of the proton of the target product, was confirmed, and the yield was determined. The results are shown in Table 9.

[Example 35] Hydrosilylation of styrene with dimethylhydrosilyl double-ended blockade polydimethylsiloxane The reaction was carried out in the same procedure as in Example 26 except that 20 mg (0.12 mmol) of AdNC was used instead of tBuNC. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, a multiplex line of 0.91 ppm, which is a signal of the target product, was confirmed, and the yield thereof was determined. The results are shown in Table 9.

(11) Hydrosilylation of styrene with 1,1,3,3,3-pentamethyldisiloxane using bisiminopyridine ligand

[Examples 36 to 38]
A screw vial, and synthesized _{Fe (COT) 2 8mg (0.03mmol} ), the ligands shown in Table 10 (0.03 mmol) was added in Synthesis Example 2, 1,1,3,3,3 After adding 254 μL (1.3 mmol) of pentamethyldisiloxane and 115 μL (1.0 mmol) of styrene and sealing, the reaction was carried out under the conditions shown in Table 10. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material was reduced. Then, multiple lines around 0.89 ppm, which is the signal of the target product, were confirmed, and the conversion rate and yield were determined by ^{1 1} H-NMR, respectively. The results are shown in Table 10.

ＭｅＰＤＩ：２，６−ビス［１−（２，６−ジメチルフェニルイミノ）エチル］ピリジン
ＥｔＰＤＩ：２，６−ビス［１−（２，６−ジエチルフェニルイミノ）エチル］ピリジン

MePDI: 2,6-bis [1- (2,6-dimethylphenylimino) ethyl] pyridine EtPDI: 2,6-bis [1- (2,6-diethylphenylimino) ethyl] pyridine

(12) Hydrosilylation of 1-octene with 1,1,3,3,3-pentamethyldisiloxane using bisiminopyridine ligand

[Example 39]
The reaction was carried out in the same procedure as in Example 36, except that 157 μL (1.0 mmol) of 1-octene was used instead of styrene. As a result, it was confirmed that the signal of the raw material was reduced. Then, a multi-line of 0.51 ppm, which is a signal of the target product, was confirmed. ^{1 The} conversion rate and yield were determined by ¹ H-NMR. The results are shown in Table 11.

[Example 40]
The reaction was carried out in the same procedure as in Example 38, except that 157 μL (1.0 mmol) of 1-octene was used instead of styrene. As a result, it was confirmed that the signal of the raw material was reduced. Then, a multi-line of 0.51 ppm, which is a signal of the target product, was confirmed. ^{1 The} conversion rate and yield were determined by ¹ H-NMR. The results are shown in Table 11.

(13) Hydrosilylation of styrene with 1,1,3,3,3-pentamethyldisiloxane using various iron precursors and tBuNC ligand

[Example 41]
In a screw vial, ₇ mg (0.03 mmol) of ₂ Fe (MPDE) synthesized in Synthesis Example 3, 7 μL (0.06 mmol) of tBuNC, 254 μL (1.3 mmol) of 1,1,3,3,3-pentamethyldisiloxane, styrene. 115 μL (1.0 mmol) was added, and after sealing, the mixture was stirred at 80 ° C. for 3 hours. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, multiple lines around 0.89 ppm, which is a signal of the proton of the target product, were confirmed, and the yield was determined. The results are shown in Table 12.

[Example 42]
The reaction was carried out in the same procedure as in Example 41 except that ₇ mg (0.03 mmol) of (DMPDE) ₂ Fe synthesized in Synthesis Example 4 was used instead of (MPDE) ₂ Fe. As a result, it was confirmed that the signal of the ethylene moiety of styrene, which is the raw material, disappeared completely. Then, multiple lines around 0.89 ppm, which is a signal of a proton on the carbon adjacent to silicon in the target product 1,1,1,3,3-pentamethyl-3-phenethyldisiloxane, were confirmed, and the yield was determined. I asked. The results are shown in Table 12.

[Example 43]
The same amount of the reaction reagent as in Example 41 was charged into the screw vial, sealed, and stirred at 50 ° C. for 23 hours. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the ethylene moiety of styrene, which is the raw material, disappeared completely. Then, the multiple lines around 0.89 ppm, which is the signal of the target product, were confirmed, and the yield was determined. The results are shown in Table 12.

(14) Hydrosilylation of 1-octene with 1,1,3,3,3-pentamethyldisiloxane using iron precursor and NHC ligand

[Example 44]
In a screw vial, ₂ Fe 2 mg (0.01 mmol) of (MPDE) synthesized in Synthesis Example 3, 1,3-dimesityl imidazol-2-iriden 6 mg (0.02 mmol), 1,1,3,3,3- 254 μL (1.3 mmol) of pentamethyldisiloxane and 157 μL (1.0 mmol) of 1-octene were added, and the mixture was sealed and stirred at 80 ° C. for 24 hours. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, the multiple lines around 0.89 ppm, which is the signal of the target product, were confirmed, and the yield was determined. The results are shown in Table 13.

(15) Hydrosilylation of styrene with 1,1,3,3,3-pentamethyldisiloxane using various iron complexes

[Examples 45 to 48]
In a glove box filled with nitrogen, the iron catalyst (0.03 mmol) shown in Table 14 was added to a screw vial containing a stir bar, and 254 μL (1) of 1,1,3,3,3-pentamethyldisiloxane was added. .3 mmol) and 115 μL (1.0 mmol) of styrene were added and sealed, and then the reaction was carried out under the conditions shown in Table 14. After cooling, ^{1 1} H-NMR spectrum was measured to determine the structure and yield of the product. As a result, it was confirmed that the signal of the raw material disappeared completely. Then, multiple lines around 0.89 ppm, which is the signal of the target product, were confirmed, and the yields by ^{1 1} H-NMR were determined. The results are shown in Table 14.

(16) Hydrosilylation of alkene with 1,1,3,3,3-pentamethyldisiloxane using various iron precursors and various ligands [Example 49]
Biscyclooctatetraene iron 3 mg (0.01 mmol), tBuNC 3 μL (0.02 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol), styrene 115 μL (synthesized in Synthesis Example 2) 1.0 mmol) was used, and the mixture was stirred at 50 ° C. for 3 hours in the same manner as in Example 11. The yield of the target product obtained in the same manner as in Example 3 was 99%.

[Example 50]
Biscyclooctatetraene iron 3 mg (0.01 mmol), AdNC 3 mg (0.02 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol), styrene 115 μL (synthesized in Synthesis Example 2) Using 1.0 mmol), the mixture was stirred at 50 ° C. for 0.5 hours in the same manner as in Example 11. The yield of the target product obtained in the same manner as in Example 3 was 99%.

[Example 51]
2 mg (0.01 mmol) of bis (3-methylpentadienyl) iron synthesized in Synthesis Example 3, 3 μL (0.02 mmol) of tBuNC, 254 μL (1.3 mmol) of 1,1,3,3,3-pentamethyldisiloxane , 115 μL (1.0 mmol) of styrene was used, and the mixture was stirred at 50 ° C. for 6 hours in the same manner as in Example 11. The yield of the target product obtained in the same manner as in Example 3 was 99%.

[Example 52]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol), AdNC 3 mg (0.02 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol) synthesized in Synthesis Example 3 , 115 μL (1.0 mmol) of styrene was used, and the mixture was stirred at 50 ° C. for 6 hours in the same manner as in Example 11. The yield of the target product obtained in the same manner as in Example 3 was 99%.

[Example 53]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol), AdNC 3 mg (0.02 mmol), 1,1,3,3,3-pentamethyldisiloxane 2.54 mL (13.) Synthesized in Synthesis Example 3. 0 mmol) and 1.15 mL (10.0 mmol) of styrene were used, and the mixture was stirred at 50 ° C. for 23 hours in the same manner as in Example 11. The yield of the target product obtained in the same manner as in Example 3 was 99%.

[Example 54]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol), MePDI 4 mg (0.01 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol) synthesized in Synthesis Example 3 , 115 μL (1.0 mmol) of styrene was used, and the mixture was stirred at 80 ° C. for 3 hours in the same manner as in Example 3. The yield of the target product obtained in the same manner as in Example 3 was 99%.

[Example 55]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol), EtPDI 4 mg (0.01 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol) synthesized in Synthesis Example 3 , 115 μL (1.0 mmol) of styrene was used, and the mixture was stirred at 80 ° C. for 3 hours in the same manner as in Example 3. The yield of the target product obtained in the same manner as in Example 3 was 99%.

[Example 56]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol) synthesized in Synthesis Example 3, 2,6-bis [1- (2,6-diisopropylphenylimino) ethyl] pyridine (iPrPDI) 5 mg (0. 01 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol) and styrene 115 μL (1.0 mmol) were used, and the mixture was stirred at 80 ° C. for 3 hours in the same manner as in Example 3. The conversion rate obtained in the same manner as in Example 3 was 40%, and the yield of the target product was 34%.

[Example 57]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol) synthesized in Synthesis Example 3, 2,2': 6', 2 "-terpyridine 2 mg (0.01 mmol), 1,1,3,3 Using 254 μL (1.3 mmol) of 3-pentamethyldisiloxane and 115 μL (1.0 mmol) of styrene, the mixture was stirred at 80 ° C. for 3 hours in the same manner as in Example 3. The conversion rate obtained in the same manner as in Example 3 was 24%. The yield of the target product was 18%.

[Example 58]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol), MePDI 4 mg (0.01 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol) synthesized in Synthesis Example 3 , 1-octene, 157 μL (1.0 mmol), was stirred at 80 ° C. for 3 hours in the same manner as in Example 1. The conversion rate obtained in the same manner as in Example 1 was 99% or more, and the yield of the target product was 67%.

[Example 59]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol), EtPDI 4 mg (0.01 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol) synthesized in Synthesis Example 3 , 1-octene, 157 μL (1.0 mmol), was stirred at 80 ° C. for 3 hours in the same manner as in Example 1. The conversion rate obtained in the same manner as in Example 1 was 99% or more, and the yield of the target product was 85%.

[Example 60]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol), iPrPDI 5 mg (0.01 mmol), 1,1,3,3,3-pentamethyldisiloxane 254 μL (1.3 mmol) synthesized in Synthesis Example 3 , 1-octene, 157 μL (1.0 mmol), was stirred at 80 ° C. for 3 hours in the same manner as in Example 1. The conversion rate obtained in the same manner as in Example 1 was 99% or more, and the yield of the target product was 76%.

[Example 61]
Bis (3-methylpentadienyl) iron 2 mg (0.01 mmol) synthesized in Synthesis Example 3, 2,2': 6', 2 "-terpyridine 2 mg (0.01 mmol), 1,1,3,3 Using 254 μL (1.3 mmol) of 3-pentamethyldisiloxane and 157 μL (1.0 mmol) of 1-octene, the mixture was stirred at 80 ° C. for 3 hours in the same manner as in Example 1. The yield of the target product was 75% and 34%.

[Example 62]
7 mg (0.03 mmol) of bis (3-methylpentadienyl) iron synthesized in Synthesis Example 3, 7 μL (0.06 mmol) of tBuNC, 254 μL (1.3 mmol) of 1,1,3,3,3-pentamethyldisiloxane , 4-Chlorostyrene 127 μL (1.0 mmol) was used, and the mixture was stirred at 50 ° C. for 23 hours in the same manner as in Example 30. The yield of the target product obtained in the same manner as in Example 30 was 99%.

[Example 63]
7 mg (0.03 mmol) of bis (3-methylpentadienyl) iron synthesized in Synthesis Example 3, 10 mg (0.06 mmol) of AdNC, 254 μL (1.3 mmol) of 1,1,3,3,3-pentamethyldisiloxane , 4-Chlorostyrene 127 μL (1.0 mmol) was used, and the mixture was stirred at 50 ° C. for 23 hours in the same manner as in Example 30. The yield of the target product obtained in the same manner as in Example 30 was 99%.

[Example 64]
7 mg (0.03 mmol) of bis (3-methylpentadienyl) iron synthesized in Synthesis Example 3, 7 μL (0.06 mmol) of tBuNC, 254 μL (1.3 mmol) of 1,1,3,3,3-pentamethyldisiloxane. , 4-Methoxystyrene (134 μL (1.0 mmol)) was stirred at 50 ° C. for 23 hours in the same manner as in Example 28. The yield of the target product obtained in the same manner as in Example 28 was 89%.

[Example 65]
7 mg (0.03 mmol) of bis (3-methylpentadienyl) iron synthesized in Synthesis Example 3, 10 mg (0.06 mmol) of AdNC, 254 μL (1.3 mmol) of 1,1,3,3,3-pentamethyldisiloxane , 4-Methoxystyrene (134 μL (1.0 mmol)) was stirred at 50 ° C. for 23 hours in the same manner as in Example 28. The yield of the target product obtained in the same manner as in Example 28 was 99%.

Claims (14)

Equation (1)
Fe (X) _a (1)
(In the formula, X represents a ligand having 2 to 30 carbon atoms which may contain an unsaturated group, excluding the carbonyl group (CO group) and the cyclopentadienyl group, independently of each other. At least one of them contains an unsaturated group
a represents an integer of 2 to 4 per Fe atom. )
Represented by, the Fe has a bond with a carbon atom contained in X, the total number of Fe-carbon bonds is 2 to 10, and the bond is a covalent bond only, a coordination bond only, or both. With a mononuclear complex of iron, or a dinuclear or trinuclear complex,
A method for preparing a hydrosilylated iron catalyst, which comprises reacting with a two-electron ligand (L). The method for preparing a hydrosilylated iron catalyst according to claim 1, wherein Fe is bonded only to a carbon atom contained in X. The method for preparing a hydrosilylated iron catalyst according to claim 1 or 2, wherein X comprises only a ligand having 2 to 30 carbon atoms containing an unsaturated group. The method for preparing a hydrosilylated iron catalyst according to any one of claims 1 to 3, wherein X is an aryl group and the total number of Fe-carbon bonds is 2. The method for preparing a hydrosilylated iron catalyst according to any one of claims 1 to 3, which is a mononuclear complex having a total number of Fe-carbon bonds of 6 to 10. The method for preparing a hydrosilylated iron catalyst according to claim 5, wherein the total number of Fe-carbon bonds is 10. 5. The claim 5 or 6, wherein X is at least one ligand selected from a cyclic olefin, acyclic olefin, cyclic olefinyl group and acyclic olefinyl group having 1 to 5 unsaturated groups in the molecule. How to prepare a hydrosilylated iron catalyst. The L is at least one two-electron selected from a carbonyl group, molecular hydrogen, amine, imine, nitrogen-containing heterocycle, phosphine, alcine, alcohol, thiol, ether, sulfide, nitrile, isocyanide, aldehyde, ketone and carbene. The method for preparing a hydrosilylated iron catalyst according to any one of claims 1 to 7, which is a ligand. The L is at least one two-electron ligand selected from molecular hydrogen, amine, imine, nitrogen-containing heterocycle, phosphine, alcine, alcohol, thiol, ether, sulfide, nitrile, isocyanide, aldehyde, ketone and carbene. The method for preparing a hydrosilylated iron catalyst according to claim 8. The method for preparing a hydrosilylated iron catalyst according to claim 9, wherein L is at least one two-electron ligand selected from a nitrogen-containing heterocycle, isocyanide and carbene. The L is the formula (2)
Y-NC (2)
(In formula (2), Y may be substituted, and one or more atoms selected from oxygen, nitrogen, sulfur and phosphorus may be interposed. Monovalent organic having 1 to 30 carbon atoms. The isocyanide compound represented by (representing a group), and the formula (3).

(In formula (3), Z represents a carbon atom, a nitrogen atom or an oxygen atom, and when Z is a carbon atom, b is 3, when Z is a nitrogen atom, b is 2, and Z is oxygen. When it is an atom, b is 1,
R ¹ and R ² represent an alkyl group having 1 to 30 carbon atoms, an aryl group or an aralkyl group, which may be substituted with a halogen atom or an alkoxy group independently of each other, and any one of R ¹ and Any one of R ² may be bonded to form a divalent organic group to form a cyclic structure, and when the cyclic structure is formed, a nitrogen atom and / or an unsaturated bond may be contained. )
The method for preparing a hydrosilylated iron catalyst according to claim 10, wherein the hydrosilylated iron catalyst is at least one two-electron ligand selected from a carbene compound in which one or two nitrogen atoms are adjacent to each other. The method for preparing a hydrosilylated iron catalyst according to claim 11, wherein the carbene compound represented by the formula (3) is represented by the formula (4).

(In the formula, A represents a divalent organic group having 2 to 5 carbon atoms which may contain a nitrogen atom and / or an unsaturated bond.) The method for preparing a hydrosilylated iron catalyst according to claim 10, wherein L is a bisiminopyridine compound or a terpyridine compound. The hydrosilylated iron catalyst according to any one of claims 1 to 13, which is carried out in a system in which a compound having an aliphatic unsaturated bond and a hydrosilane compound having a Si—H group or an organohydropolysiloxane compound undergo a hydrosilylation reaction. Preparation method.

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