JP2008081484A - Method for producing (substituted propylsulfanyl)-alkyl alcohol - Google Patents

Method for producing (substituted propylsulfanyl)-alkyl alcohol Download PDF

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JP2008081484A
JP2008081484A JP2006290513A JP2006290513A JP2008081484A JP 2008081484 A JP2008081484 A JP 2008081484A JP 2006290513 A JP2006290513 A JP 2006290513A JP 2006290513 A JP2006290513 A JP 2006290513A JP 2008081484 A JP2008081484 A JP 2008081484A
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propylsulfanyl
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JP5040261B2 (en
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Masahito Hirano
雅人 平野
Kanji Onishi
完二 大西
Kazutaka Hagitani
一剛 萩谷
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Toyo Kasei Kogyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a (substituted propylsulfanyl)-alkyl alcohol useful as a raw material of an agrochemical, a medicine and a process which is environmentally friendly, safe and efficient. <P>SOLUTION: This method for producing the (substituted propylsulfanyl)-alkyl alcohol expressed by formula (3) [wherein, A is an alkylene; and X is a halogen, hydroxy, an alkyl ether, an aromatic ether, a benzyl ether, a trialkylsilylether, an alkyl ester or an alkyl amide] is characterized by reacting an allyl compound expressed by formula (1) with a hydroxymercapto compound expressed by formula (2) in the presence of an azo compound. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、新規な(置換プロピルスルファニル)−アルキルアルコールの製造方法に関する。  The present invention relates to a process for producing novel (substituted propylsulfanyl) -alkyl alcohols.

(置換プロピルスルファニル)−アルキルアルコールは、医農薬・機能性物質の原料として有用であることが知られている(特許文献1参照)。  (Substituted propylsulfanyl) -alkyl alcohol is known to be useful as a raw material for medical pesticides and functional substances (see Patent Document 1).

従来、(置換プロピルスルファニル)−アルキルアルコールの製造方法としては、例えば2−(3−クロロプロピルスルファニル)−エタノールの場合、以下のような方法が知られている。
(1)下記反応スキームのように表わされる、2−メルカプトエタノールをナトリウム エトキシド存在下、ジハロプロパンと反応させる方法(非特許文献1参照)。
Conventionally, as a method for producing (substituted propylsulfanyl) -alkyl alcohol, for example, in the case of 2- (3-chloropropylsulfanyl) -ethanol, the following methods are known.
(1) A method of reacting 2-mercaptoethanol with dihalopropane in the presence of sodium ethoxide, as shown in the following reaction scheme (see Non-Patent Document 1).

Figure 2008081484
Figure 2008081484

(2)下記反応スキームのように表わされる、アリルアミン誘導体を酸素気流下、2− メルカプトエタノールと反応させる方法(特許文献1参照)。  (2) A method in which an allylamine derivative represented by the following reaction scheme is reacted with 2-mercaptoethanol under an oxygen stream (see Patent Document 1).

Figure 2008081484
Figure 2008081484

しかしながら、上記(1)の方法では原子効率が悪く、大量の臭化ナトリウムが廃棄物として副生する。また、上記(2)の方法では酸素を吹込む反応であるため、一般的に反応の制御が困難である。なお、反応系中に酸素が存在するため、何らかの着火源により爆発する危険性もあり安全面にも問題がある。  However, the method (1) has poor atomic efficiency, and a large amount of sodium bromide is by-produced as waste. In addition, since the method (2) is a reaction in which oxygen is blown, it is generally difficult to control the reaction. In addition, since oxygen exists in the reaction system, there is a risk of explosion due to some ignition source, which is problematic in terms of safety.

従って、従来の方法を用いての(置換プロピルスルファニル)−アルキルアルコールの製造は、環境問題および安全等の点からいずれの方法も工業的には不利である。
米国特許第5,278,341号公報 ジャーナル オブ ジ アメリカン ケミカル ソサイエティー,第67版1945年、p.1847
Therefore, the production of (substituted propylsulfanyl) -alkyl alcohols using conventional methods is industrially disadvantageous in terms of environmental problems and safety.
US Pat. No. 5,278,341 Journal of the American Chemical Society, 67th Edition, 1945, p. 1847

従って、本発明の目的は、医農薬・機能性物質の原料として有用な(置換プロピルスルファニル)−アルキルアルコールを、環境問題を解決して安全且つ効率良く製造することのできる方法を提供することにある。  Accordingly, an object of the present invention is to provide a method capable of safely and efficiently producing (substituted propylsulfanyl) -alkyl alcohols useful as raw materials for medical pesticides and functional substances by solving environmental problems. is there.

本発明者らは、上記の課題に対し工業的に有利な方法を鋭意検討した結果、アリル化合物を触媒量のアゾ化合物の存在下、2−メルカプトエタノールと反応させることにより、(置換プロピルスルファニル)−アルキルアルコールを容易かつ安全に効率良く製造できることを見出し、本発明を完成させるに至った。  As a result of earnestly examining industrially advantageous methods for the above-mentioned problems, the present inventors have reacted an allyl compound with 2-mercaptoethanol in the presence of a catalytic amount of an azo compound to obtain (substituted propylsulfanyl). -The inventors have found that alkyl alcohols can be produced easily, safely and efficiently, and have completed the present invention.

即ち、本発明は、下記に示す通りの(置換プロピルスルファニル)−アルキルアルコールの製造方法を提供するものである。
項1.下記一般式(1);
That is, this invention provides the manufacturing method of the (substituted propylsulfanyl) -alkyl alcohol as shown below.
Item 1. The following general formula (1);

Figure 2008081484
Figure 2008081484

(式中のXは、ハロゲン、水酸基、アルキルエーテル基、芳香族エーテル基、ベンジルエーテル基、トリアルキルシリルエーテル基、アルキルエステル基またはアルキルアミド基を示す。)
で表わされるアリル化合物を、アゾ化合物存在下、下記一般式(2);
(X in the formula represents a halogen, a hydroxyl group, an alkyl ether group, an aromatic ether group, a benzyl ether group, a trialkylsilyl ether group, an alkyl ester group or an alkylamide group.)
In the presence of an azo compound, an allyl compound represented by the following general formula (2):

Figure 2008081484
Figure 2008081484

(式中のAは、アルキレン基を示す。)
で表されるヒドロキシメルカプト化合物と反応させることを特徴とする下記一般式(3);
(A in the formula represents an alkylene group.)
The following general formula (3), characterized by reacting with a hydroxymercapto compound represented by the formula:

Figure 2008081484
Figure 2008081484

(式中のXおよびAは前記と同義である。)
で表される(置換プロピルスルファニル)−アルキルアルコールの製造方法。
項2.ヒドロキシメルカプト化合物が、2−メルカプトエタノールまたは4−ヒドロキシチオフェノールであることを特徴とする項1記載の方法。
項3.アゾ化合物が、2,2’−アゾビスイソブチロニトリルまたはジメチル−2,2’−アゾビス(2−メチルプロピオネート)であることを特徴とする項1または2記載の方法。
項4.下記一般式(1);
(X and A in the formula are as defined above.)
The manufacturing method of (substituted propylsulfanyl) -alkyl alcohol represented by these.
Item 2. Item 2. The method according to Item 1, wherein the hydroxymercapto compound is 2-mercaptoethanol or 4-hydroxythiophenol.
Item 3. Item 3. The method according to Item 1 or 2, wherein the azo compound is 2,2'-azobisisobutyronitrile or dimethyl-2,2'-azobis (2-methylpropionate).
Item 4. The following general formula (1);

Figure 2008081484
Figure 2008081484

(式中のXは、前記と同義である。)
で表わされるアリル化合物を、アゾ化合物存在下、下記一般式(2);
(X in the formula is as defined above.)
In the presence of an azo compound, an allyl compound represented by the following general formula (2):

Figure 2008081484
Figure 2008081484

(式中のAは、前記と同義である。)
で表されるヒドロキシメルカプト化合物と反応させることにより得られる下記一般式(3);
(A in the formula is as defined above.)
The following general formula (3) obtained by reacting with a hydroxymercapto compound represented by:

Figure 2008081484
Figure 2008081484

(式中のXおよびAは前記と同義である。)
で表される(置換プロピルスルファニル)−アルキルアルコール。
(X and A in the formula are as defined above.)
(Substituted propylsulfanyl) -alkyl alcohol represented by

本発明の製造方法によれば、原子効率がよく環境負荷のかかりにくい温和な条件で、容易かつ安全に(置換プロピルスルファニル)−アルキルアルコールを効率良く製造することができる。  According to the production method of the present invention, (substituted propylsulfanyl) -alkyl alcohol can be efficiently produced easily and safely under mild conditions with high atomic efficiency and less environmental burden.

以下、本発明を詳細に説明する。  Hereinafter, the present invention will be described in detail.

本発明において、使用するアリル化合物は、下記一般式(1)で示される。  In the present invention, the allyl compound to be used is represented by the following general formula (1).

Figure 2008081484
Figure 2008081484

上記一般式(1)中のXは、ハロゲン、水酸基、アルキルエーテル基、芳香族エーテル基、ベンジルエーテル基、トリアルキルシリルエーテル基、アルキルエステル基またはアルキルアミド基を示す。ハロゲンとしては、塩素、臭素もしくはヨウ素などが挙げられ、塩素もしくは臭素が好ましい。また、アルキルエーテル基、トリアルキルシリルエーテル基、アルキルエステル基およびアルキルアミド基のアルキル部分は、直鎖状でも分岐鎖状でもよく、分岐鎖状の場合、分岐位置や分岐数は限定されない。好ましくは、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基もしくはイソブチル基などの炭素数1〜5のアルキル基が挙げられ、より好ましくはメチル基もしくはエチル基などが挙げられる。芳香族エーテルの芳香族としては特に限定されるものではないが、フェニル基、アルキルフェニル基、アルコキシフェニル基、クロロフェニル基、ブロモフェニル基、ヨードフェニル基が挙げられ、フェニル基、アルコキシフェニル基もしくはクロロフェニル基が好ましい。アルキルフェニル基及びアルコキシフェニル基のアルキル部分としては、直鎖状でも分岐鎖状でもよく、分岐鎖状の場合、分岐位置や分岐数は限定されない。好ましくは、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基もしくはイソブチル基などの炭素数1〜5のアルキル基が挙げられ、より好ましくはメチル基もしくはエチル基などが挙げられる。アリル化合物の好適な具体例としては、3−クロロプロペン、2−プロペン−1−オール、酢酸アリル、アリロキシ−トリメチルシラン、アリルベンジルエーテルが挙げられる。  X in the general formula (1) represents a halogen, a hydroxyl group, an alkyl ether group, an aromatic ether group, a benzyl ether group, a trialkylsilyl ether group, an alkyl ester group or an alkylamide group. Examples of the halogen include chlorine, bromine and iodine, and chlorine or bromine is preferable. Further, the alkyl moiety of the alkyl ether group, trialkylsilyl ether group, alkyl ester group and alkylamide group may be linear or branched, and in the case of a branched chain, the branch position and the number of branches are not limited. Preferably, an alkyl group having 1 to 5 carbon atoms such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group or an isobutyl group is used, and a methyl group or an ethyl group is more preferable. Aromatic ether aromatics are not particularly limited, but include phenyl, alkylphenyl, alkoxyphenyl, chlorophenyl, bromophenyl, and iodophenyl groups. Phenyl, alkoxyphenyl or chlorophenyl Groups are preferred. The alkyl moiety of the alkylphenyl group and alkoxyphenyl group may be linear or branched, and in the case of a branched chain, the branch position and the number of branches are not limited. Preferably, an alkyl group having 1 to 5 carbon atoms such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group or an isobutyl group is used, and a methyl group or an ethyl group is more preferable. Preferable specific examples of the allyl compound include 3-chloropropene, 2-propen-1-ol, allyl acetate, allyloxy-trimethylsilane, and allyl benzyl ether.

本発明において、使用するヒドロキシメルカプト化合物は、下記一般式(2)で示される。  In the present invention, the hydroxymercapto compound to be used is represented by the following general formula (2).

Figure 2008081484
Figure 2008081484

上記一般式(2)中のAは、アルキレン基を表す。アルキレン基は直鎖状でも分岐鎖状でもよく、分岐鎖状の場合、分岐位置や分岐数は限定されない。アルキレン基としては、炭素数は1〜30が好ましく、2〜10が特に好ましい。ヒドロキシメルカプト化合物の好適な具体例としては、メルカプトメタノール、2−メルカプトエタノール、3−メルカプトプロパノール、4−メルカプトブタノールが挙げられ、特に好ましくは2−メルカプトエタノールもしくは3−メルカプトプロパノールが挙げられる。ヒドロキシメルカプト化合物の使用量は、上記一般式(1)で表されるアリル化合物1モルに対して0.5モル〜3.0モル、特に0.7〜2.0モルが好ましい。  A in the general formula (2) represents an alkylene group. The alkylene group may be linear or branched, and in the case of a branched chain, the branch position and the number of branches are not limited. As an alkylene group, 1-30 are preferable, and 2-10 are especially preferable. Preferable specific examples of the hydroxymercapto compound include mercaptomethanol, 2-mercaptoethanol, 3-mercaptopropanol, and 4-mercaptobutanol, and particularly preferably 2-mercaptoethanol or 3-mercaptopropanol. The usage-amount of a hydroxy mercapto compound is 0.5 mol-3.0 mol with respect to 1 mol of allyl compounds represented by the said General formula (1), Especially 0.7-2.0 mol is preferable.

本発明に用いられるアゾ化合物としては、2,2’−アゾビスイソブチロニトリル、2,2’−アゾビス(2−メチルブチロニトリル)、2,2’−アゾビス(2,4−ジメチル−バレロニトリル)、1,1’−アゾビス(シクロヘキサン−1−カルボニトリル)、ジメチル−2,2’−アゾビス(2−メチルプロピオネート)および2,2’−アゾビス(2,4,4−トリメチルペンタン)からなる群から選ばれるものが挙げられ、好ましくは2,2’−アゾビスイソブチロニトリル、2,2’−アゾビス(2−メチルブチロニトリル)およびジメチル−2,2’−アゾビス(2−メチルプロピオネート)からなる群から選ばれるものが特に好ましい。アゾ化合物の使用量は、上記一般式(1)で表されるアリル化合物1モルに対して0.1〜100.0ミリモル、特に0.5〜10.0ミリモルが好ましい。  Examples of the azo compound used in the present invention include 2,2′-azobisisobutyronitrile, 2,2′-azobis (2-methylbutyronitrile), 2,2′-azobis (2,4-dimethyl- Valeronitrile), 1,1′-azobis (cyclohexane-1-carbonitrile), dimethyl-2,2′-azobis (2-methylpropionate) and 2,2′-azobis (2,4,4-trimethyl) Pentane), preferably 2,2′-azobisisobutyronitrile, 2,2′-azobis (2-methylbutyronitrile) and dimethyl-2,2′-azobis. Those selected from the group consisting of (2-methylpropionate) are particularly preferred. The amount of the azo compound used is preferably 0.1 to 100.0 mmol, particularly preferably 0.5 to 10.0 mmol, with respect to 1 mol of the allyl compound represented by the general formula (1).

本発明で使用する有機溶媒としては、反応試剤と反応しない限り特に限定されず、例えば、ベンゼン、トルエン、キシレン等の芳香族系溶媒、ジエチルエーテル、ジイソプロピルエーテル、メチル−t−ブチルエーテル、シクロペンチルメチルエーテル、ジメトキシエタン、アニソールなどのエーテル系溶媒、ヘキサン、シクロヘキサン、ヘプタン、オクタンなどの炭化水素溶媒、ジクロロメタン、クロロホルムなどのハロゲン系溶媒が挙げられ、これらの中で特にベンゼン、トルエン、ヘキサン、ヘプタンが好ましい。  The organic solvent used in the present invention is not particularly limited as long as it does not react with the reaction reagent. For example, aromatic solvents such as benzene, toluene, xylene, diethyl ether, diisopropyl ether, methyl-t-butyl ether, cyclopentyl methyl ether. , Ether solvents such as dimethoxyethane and anisole, hydrocarbon solvents such as hexane, cyclohexane, heptane and octane, and halogen solvents such as dichloromethane and chloroform, among which benzene, toluene, hexane and heptane are preferred. .

反応に用いる有機溶媒の使用量は、上記一般式(1)で表されるアリル化合物1gに対して0.5mL〜10mLが好ましく、1mL〜5mLがより好ましい。  The amount of the organic solvent used for the reaction is preferably 0.5 mL to 10 mL, more preferably 1 mL to 5 mL, with respect to 1 g of the allyl compound represented by the general formula (1).

反応温度は、20℃〜75℃が好ましく、30℃〜60℃がより好ましい。また、反応時間は6時間〜72時間が好ましく、12時間〜48時間がより好ましい。  The reaction temperature is preferably 20 ° C to 75 ° C, more preferably 30 ° C to 60 ° C. The reaction time is preferably 6 hours to 72 hours, more preferably 12 hours to 48 hours.

反応終了後、水を加えることで反応を停止し、抽出・洗浄・脱湿・濃縮などの定法により粗品を得た後に、カラムクロマトグラフィーなどの常法を用いて精製すると下記一般式(3)で表される(置換プロピルスルファニル)−アルキルアルコールが得られる。  After completion of the reaction, the reaction is stopped by adding water, and after obtaining a crude product by a conventional method such as extraction, washing, dehumidification, concentration, etc., it is purified using a conventional method such as column chromatography. (Substituted propylsulfanyl) -alkyl alcohol represented by

Figure 2008081484
Figure 2008081484

(式中、X、Aは前記と同義である。)(In the formula, X and A are as defined above.)

本発明の製造方法を用いることで、別途酸素を吹き込む必要が無く反応制御が簡易になり、また何らかの着火源により爆発する危険性を伴わず、(置換プロピルスルファニル)−アルキルアルコールを安全かつ効率よく製造することができる。  By using the production method of the present invention, it is not necessary to blow oxygen separately, the reaction control is simplified, and there is no risk of explosion due to any ignition source, and the (substituted propylsulfanyl) -alkyl alcohol is safe and efficient. Can be manufactured well.

以下の実施例により本発明を更に具体的に説明するが、本発明はこれらの実施例に何ら限定されない。  The present invention will be described more specifically with reference to the following examples, but the present invention is not limited to these examples.

実施例1 2−(3−クロロプロピルスルファニル)−エタノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに2−メルカプトエタノール9.36g(120.0mmol)、2,2’−アゾビスイソブチロニトリル0.02g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、3−クロロプロペン7.60g(100.0mmol)を滴下した。滴下終了後、45℃のまま48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで2−(3−クロロプロピルスルファニル)−エタノールが6.99g、収率45.2%で微黄色透明液体として得られた。
H−NMR(CDCl):δ=3.73(t、J=6.0Hz、2H),3.65(t、J=6.2Hz、2H),2.69(t、J=6.0Hz、2H),2.68(t、J=7.0Hz、2H),2.03(tt、J=7.0,6.2Hz、2H)
Example 1 Production of 2- (3-chloropropylsulfanyl) -ethanol (reaction)
2-mercaptoethanol (9.36 g, 120.0 mmol), 2,2′-azobisisobutyronitrile (0.02 g, 0.12 mmol), and toluene (17 mL) were added to a 50 mL two-necked flask sufficiently purged with nitrogen. After the temperature of the solution was raised to 45 ° C., 7.60 g (100.0 mmol) of 3-chloropropene was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The obtained concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to give 6.99 g of 2- (3-chloropropylsulfanyl) -ethanol, yield 45.2. % As a slightly yellow transparent liquid.
1 H-NMR (CDCl 3 ): δ = 3.73 (t, J = 6.0 Hz, 2H), 3.65 (t, J = 6.2 Hz, 2H), 2.69 (t, J = 6) 0.0 Hz, 2H), 2.68 (t, J = 7.0 Hz, 2H), 2.03 (tt, J = 7.0, 6.2 Hz, 2H)

実施例2 2−(3−クロロプロピルスルファニル)−エタノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに2−メルカプトエタノール9.36g(120.0mmol)、ジメチル−2,2’−アゾビス(2−メチルプロピオネート)0.03g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、3−クロロプロペン7.60g(100.0mmol)を滴下した。滴下終了後、45℃のまま48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで2−(3−クロロプロピルスルファニル)−エタノールが6.45g、収率41.9%で微黄色透明液体として得られた。
Example 2 Production of 2- (3-chloropropylsulfanyl) -ethanol (reaction)
2-mercaptoethanol (9.36 g, 120.0 mmol), dimethyl-2,2′-azobis (2-methylpropionate) (0.03 g, 0.12 mmol), and toluene (17 mL) were placed in a 50 mL two-necked flask that had been sufficiently purged with nitrogen. added. After the temperature of the solution was raised to 45 ° C., 7.60 g (100.0 mmol) of 3-chloropropene was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The resulting concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to give 6.45 g of 2- (3-chloropropylsulfanyl) -ethanol, yield 41.9. % As a slightly yellow transparent liquid.

比較例1
(反応)
50mL2口フラスコに2−メルカプトエタノール9.313g(120.0mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち3−クロロプロペン7.60g(100.0mmol)を加え、乾燥空気を挿気しながら72時間加熱撹拌した。しかし、反応は進行せず2−(3−クロロプロピルスルファニル)−エタノールは得られなかった。
Comparative Example 1
(reaction)
To a 50 mL two-necked flask, 9.313 g (120.0 mmol) of 2-mercaptoethanol and 17 mL of toluene were added. The temperature of the solution was raised to 45 ° C., 7.60 g (100.0 mmol) of 3-chloropropene was added, and the mixture was heated and stirred for 72 hours while injecting dry air. However, the reaction did not proceed and 2- (3-chloropropylsulfanyl) -ethanol was not obtained.

実施例3 3−(3−クロロプロピルスルファニル)−プロパノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに3−メルカプトプロパノール11.06g(120.0mmol)、2,2’−アゾビスイソブチロニトリル0.02g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、3−クロロプロペン7.60g(100.0mmol)を滴下した。滴下終了後、45℃のまま48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで3−(3−クロロプロピルスルファニル)−プロパノールが9.84g、収率51.2%で微黄色透明液体として得られた。
H−NMR(CDCl):δ=3.75(t、J=6.0Hz、2H),3.64(t、J=6.2Hz、2H),2.69−2.60(m、4H),2.09−2.01(m、2H)、1.89−1.82(m、2H)
Example 3 Production of 3- (3-chloropropylsulfanyl) -propanol (reaction)
To a 50 mL two-necked flask sufficiently purged with nitrogen, 11.06 g (120.0 mmol) of 3-mercaptopropanol, 0.02 g (0.12 mmol) of 2,2′-azobisisobutyronitrile and 17 mL of toluene were added. After the temperature of the solution was raised to 45 ° C., 7.60 g (100.0 mmol) of 3-chloropropene was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The resulting concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to give 9.84 g of 3- (3-chloropropylsulfanyl) -propanol, yield 51.2. % As a slightly yellow transparent liquid.
1 H-NMR (CDCl 3 ): δ = 3.75 (t, J = 6.0 Hz, 2H), 3.64 (t, J = 6.2 Hz, 2H), 2.69-2.60 (m 4H), 2.09-2.01 (m, 2H), 1.89-1.82 (m, 2H)

比較例2
(反応)
50mL2口フラスコに3−メルカプトプロパノール11.06g(120.0mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち3−クロロプロペン7.60g(100.0mmol)を加え、乾燥空気を挿気しながら72時間加熱撹拌した。しかし、反応は進行せず3−(3−クロロプロピルスルファニル)−プロパノールは得られなかった。
Comparative Example 2
(reaction)
To a 50 mL two-necked flask, 11.06 g (120.0 mmol) of 3-mercaptopropanol and 17 mL of toluene were added. The temperature of the solution was raised to 45 ° C., 7.60 g (100.0 mmol) of 3-chloropropene was added, and the mixture was heated and stirred for 72 hours while injecting dry air. However, the reaction did not proceed and 3- (3-chloropropylsulfanyl) -propanol was not obtained.

実施例4 2−(3−アセトキシプロピルスルファニル)−エタノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに2−メルカプトエタノール9.36g(120.0mmol)、2,2’−アゾビスイソブチロニトリル0.02g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、酢酸アリル10.01g(100.0mmol)を滴下した。滴下終了後、45℃のままで48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで2−(3−アセトキシプロピルスルファニル)−エタノールが16.06g、収率90.1%で微黄色透明液体として得られた。
H−NMR(CDCl):δ=3.74(t、J=6.4Hz、2H),3.73(t、J=6.0Hz、2H),2.72(t、J=6.0Hz、2H),2.65(t、J=7.0Hz、2H),2.13(s、3H),1.83(tt、J=7.0,6.4Hz、2H)
Example 4 Production of 2- (3-acetoxypropylsulfanyl) -ethanol (reaction)
2-mercaptoethanol (9.36 g, 120.0 mmol), 2,2′-azobisisobutyronitrile (0.02 g, 0.12 mmol), and toluene (17 mL) were added to a 50 mL two-necked flask sufficiently purged with nitrogen. After the temperature of the solution was raised to 45 ° C., 10.01 g (100.0 mmol) of allyl acetate was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The obtained concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to give 16.06 g of 2- (3-acetoxypropylsulfanyl) -ethanol, yield 90.1 % As a slightly yellow transparent liquid.
1 H-NMR (CDCl 3 ): δ = 3.74 (t, J = 6.4 Hz, 2H), 3.73 (t, J = 6.0 Hz, 2H), 2.72 (t, J = 6 0.0 Hz, 2H), 2.65 (t, J = 7.0 Hz, 2H), 2.13 (s, 3H), 1.83 (tt, J = 7.0, 6.4 Hz, 2H)

実施例5 3−(3−アセトキシプロピルスルファニル)−プロパノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに3−メルカプトプロパノール11.06g(120.0mmol)、2,2’−アゾビスイソブチロニトリル0.02g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、酢酸アリル10.01g(100.0mmol)を滴下した。滴下終了後、45℃のままで48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで3−(3−アセトキシプロピルスルファニル)−プロパノールが17.75g、収率92.3%で微黄色透明液体として得られた。
H−NMR(CDCl):δ=4.14(t、J=6.4Hz、2H),3.74(t、J=6.0Hz、2H),2.63(t、J=7.0Hz、2H),2.58(t、J=7.0Hz、2H),2.04(s、3H),1.90(tt、J=7.0,6.4Hz、2H),1.83(tt、J=7.0,6.0Hz、2H)
Example 5 Production of 3- (3-acetoxypropylsulfanyl) -propanol (reaction)
To a 50 mL two-necked flask sufficiently purged with nitrogen, 11.06 g (120.0 mmol) of 3-mercaptopropanol, 0.02 g (0.12 mmol) of 2,2′-azobisisobutyronitrile and 17 mL of toluene were added. After the temperature of the solution was raised to 45 ° C., 10.01 g (100.0 mmol) of allyl acetate was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The obtained concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to give 17.75 g of 3- (3-acetoxypropylsulfanyl) -propanol, yield 92.3. % As a slightly yellow transparent liquid.
1 H-NMR (CDCl 3 ): δ = 4.14 (t, J = 6.4 Hz, 2H), 3.74 (t, J = 6.0 Hz, 2H), 2.63 (t, J = 7 .0 Hz, 2H), 2.58 (t, J = 7.0 Hz, 2H), 2.04 (s, 3H), 1.90 (tt, J = 7.0, 6.4 Hz, 2H), 1 .83 (tt, J = 7.0, 6.0 Hz, 2H)

実施例6 2−(3−ヒドロキシプロピルスルファニル)−エタノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに2−メルカプトエタノール9.36g(120.0mmol)、2,2’−アゾビスイソブチロニトリル0.02g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、2−プロペン−1−オール5.81g(100.0mmol)を滴下した。滴下終了後、45℃のままで48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで2−(3−ヒドロキシプロピルスルファニル)−エタノールが12.86g、収率94.4%で微黄色透明液体として得られた。
H−NMR(CDCl):δ=3.72(t、J=6.0Hz、2H),3.71(t、J=6.0Hz、2H),2.70(t、J=6.0Hz、2H),2.63(t、J=7.2Hz、2H),1.81(tt、J=7.2,6.0Hz、2H)
Example 6 Production of 2- (3-hydroxypropylsulfanyl) -ethanol (reaction)
2-mercaptoethanol (9.36 g, 120.0 mmol), 2,2′-azobisisobutyronitrile (0.02 g, 0.12 mmol), and toluene (17 mL) were added to a 50 mL two-necked flask sufficiently purged with nitrogen. After the temperature of the solution was raised to 45 ° C., 5.81 g (100.0 mmol) of 2-propen-1-ol was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The obtained concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to obtain 12.86 g of 2- (3-hydroxypropylsulfanyl) -ethanol, yield 94.4. % As a slightly yellow transparent liquid.
1 H-NMR (CDCl 3 ): δ = 3.72 (t, J = 6.0 Hz, 2H), 3.71 (t, J = 6.0 Hz, 2H), 2.70 (t, J = 6) 0.0 Hz, 2H), 2.63 (t, J = 7.2 Hz, 2H), 1.81 (tt, J = 7.2, 6.0 Hz, 2H)

実施例7 2−(3−トリメチルシリルプロピルスルファニル)−エタノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに2−メルカプトエタノール9.36g(120.0mmol)、2,2’−アゾビスイソブチロニトリル0.02g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、アリロキシ−トリメチルシラン13.03g(100.0mmol)を滴下した。滴下終了後、45℃のままで48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで2−(3−トリメチルシリルプロピルスルファニル)−エタノールが13.55g、収率65.0%で微黄色透明液体として得られた。
H−NMR(CDCl):δ=3.61(t、J=5.8Hz、2H),3.56(t、J=6.0Hz、2H),2.62(t、J=5.8Hz、2H),2.49(t、J=7.2Hz、2H),1.69(tt、J=7.2,6.0Hz、2H),0.01(s、9H)
Example 7 Production of 2- (3-trimethylsilylpropylsulfanyl) -ethanol (reaction)
2-mercaptoethanol (9.36 g, 120.0 mmol), 2,2′-azobisisobutyronitrile (0.02 g, 0.12 mmol), and toluene (17 mL) were added to a 50 mL two-necked flask sufficiently purged with nitrogen. After the temperature of the solution was raised to 45 ° C., 13.03 g (100.0 mmol) of allyloxy-trimethylsilane was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The obtained concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to obtain 13.55 g of 2- (3-trimethylsilylpropylsulfanyl) -ethanol, yield 65.0. % As a slightly yellow transparent liquid.
1 H-NMR (CDCl 3 ): δ = 3.61 (t, J = 5.8 Hz, 2H), 3.56 (t, J = 6.0 Hz, 2H), 2.62 (t, J = 5 .8 Hz, 2H), 2.49 (t, J = 7.2 Hz, 2H), 1.69 (tt, J = 7.2, 6.0 Hz, 2H), 0.01 (s, 9H)

実施例8 2−(3−ベンジロキシプロピルスルファニル)−エタノールの製造
(反応)
十分に窒素置換した50mL2口フラスコに2−メルカプトエタノール9.36g(120.0mmol)、2,2’−アゾビスイソブチロニトリル0.02g(0.12mmol)、トルエン17mLを加えた。その溶液を45℃まで昇温したのち、アリルベンジルエーテル14.82g(100.0mmol)を滴下した。滴下終了後、45℃のままで48時間反応した。反応終了後、室温まで冷却した後に、溶媒留去を行った。得られた濃縮残渣をシリカゲルカラムクロマトグラフィー(シリカゲル、酢酸エチル/ヘキサン=2/1)を用いて精製することで2−(3−ベンジロキシプロピルスルファニル)−エタノールが9.64g、収率42.6%で微黄色透明液体として得られた。
H−NMR(CDCl):δ=7.38−7.13(m、5H),4.49(s、2H),3.71(t、J=6.0Hz、2H),3.55(t、J=6.0Hz、2H),2.71(t、J=6.0Hz、2H),2.63(t、J=7.2Hz、2H),1.88(tt、J=7.2,6.0Hz、2H)
Example 8 Production of 2- (3-benzyloxypropylsulfanyl) -ethanol (reaction)
2-mercaptoethanol (9.36 g, 120.0 mmol), 2,2′-azobisisobutyronitrile (0.02 g, 0.12 mmol), and toluene (17 mL) were added to a 50 mL two-necked flask sufficiently purged with nitrogen. The temperature of the solution was raised to 45 ° C., and then 14.82 g (100.0 mmol) of allyl benzyl ether was added dropwise. After completion of dropping, the reaction was continued for 48 hours at 45 ° C. After completion of the reaction, the solvent was distilled off after cooling to room temperature. The obtained concentrated residue was purified using silica gel column chromatography (silica gel, ethyl acetate / hexane = 2/1) to obtain 9.64 g of 2- (3-benzyloxypropylsulfanyl) -ethanol, yield 42. Obtained as a slightly yellow transparent liquid at 6%.
1 H-NMR (CDCl 3 ): δ = 7.38-7.13 (m, 5H), 4.49 (s, 2H), 3.71 (t, J = 6.0 Hz, 2H), 3. 55 (t, J = 6.0 Hz, 2H), 2.71 (t, J = 6.0 Hz, 2H), 2.63 (t, J = 7.2 Hz, 2H), 1.88 (tt, J = 7.2, 6.0Hz, 2H)

いずれの実施例においても、副生成物が多量に生起することもなく、また爆発の危険もなく安全の面で全く問題はなかった。In any of the examples, a large amount of by-products did not occur, there was no danger of explosion, and there was no problem in terms of safety.

Claims (4)

下記一般式(1);
Figure 2008081484
(式中のXは、ハロゲン、水酸基、アルキルエーテル基、芳香族エーテル基、ベンジルエーテル基、トリアルキルシリルエーテル基、アルキルエステル基またはアルキルアミド基を示す。)
で表わされるアリル化合物を、アゾ化合物存在下、下記一般式(2);
Figure 2008081484
(式中のAは、アルキレン基を示す。)
で表されるヒドロキシメルカプト化合物と反応させることを特徴とする下記一般式(3);
Figure 2008081484
(式中のXおよびAは前記と同義である。)
で表される(置換プロピルスルファニル)−アルキルアルコールの製造方法。
The following general formula (1);
Figure 2008081484
(X in the formula represents a halogen, a hydroxyl group, an alkyl ether group, an aromatic ether group, a benzyl ether group, a trialkylsilyl ether group, an alkyl ester group or an alkylamide group.)
In the presence of an azo compound, an allyl compound represented by the following general formula (2):
Figure 2008081484
(A in the formula represents an alkylene group.)
The following general formula (3), characterized by reacting with a hydroxymercapto compound represented by the formula:
Figure 2008081484
(X and A in the formula are as defined above.)
The manufacturing method of (substituted propylsulfanyl) -alkyl alcohol represented by these.
ヒドロキシメルカプト化合物が、2−メルカプトエタノールまたは4−ヒドロキシチオフェノールであることを特徴とする請求項1記載の方法。  The method according to claim 1, wherein the hydroxymercapto compound is 2-mercaptoethanol or 4-hydroxythiophenol. アゾ化合物が、2,2’−アゾビスイソブチロニトリルまたはジメチル−2,2’−アゾビス(2−メチルプロピオネート)であることを特徴とする請求項1または2記載の方法。  The method according to claim 1 or 2, wherein the azo compound is 2,2'-azobisisobutyronitrile or dimethyl-2,2'-azobis (2-methylpropionate). 下記一般式(1);
Figure 2008081484
(式中のXは、前記と同義である。)
で表わされるアリル化合物を、アゾ化合物存在下、下記一般式(2);
Figure 2008081484
(式中のAは、前記と同義である。)
で表されるヒドロキシメルカプト化合物と反応させることにより得られる下記一般式(3);
Figure 2008081484
(式中のXおよびAは前記と同義である。)
で表される(置換プロピルスルファニル)−アルキルアルコール。
The following general formula (1);
Figure 2008081484
(X in the formula is as defined above.)
In the presence of an azo compound, an allyl compound represented by the following general formula (2):
Figure 2008081484
(A in the formula is as defined above.)
The following general formula (3) obtained by reacting with a hydroxymercapto compound represented by:
Figure 2008081484
(X and A in the formula are as defined above.)
(Substituted propylsulfanyl) -alkyl alcohol represented by
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