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JPH0673070A - Production of organosilicon compound - Google Patents

Production of organosilicon compound

Info

Publication number
JPH0673070A
JPH0673070A JP4232259A JP23225992A JPH0673070A JP H0673070 A JPH0673070 A JP H0673070A JP 4232259 A JP4232259 A JP 4232259A JP 23225992 A JP23225992 A JP 23225992A JP H0673070 A JPH0673070 A JP H0673070A
Authority
JP
Japan
Prior art keywords
hydrocarbon group
organosilicon compound
tertiary hydrocarbon
present
grignard reagent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4232259A
Other languages
Japanese (ja)
Inventor
Tadashi Inoue
正 井上
Kazuo Isogai
一夫 磯貝
Takao Takeuchi
孝夫 竹内
Takao Hashimoto
崇男 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP4232259A priority Critical patent/JPH0673070A/en
Publication of JPH0673070A publication Critical patent/JPH0673070A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide a method for easily producing an organosilicon compound having a tertiary hydrocarbon group in a high yield. CONSTITUTION:A Grignard reagent of formula: RMgX (R is tertiary hydrocarbon group; X is halogen) is reacted with dichlorosilane to produce the tertiary hydrocarbon group-having organosilicon compound of formula: RSiH2Cl (R is tertiary hydrocarbon group).

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は一般式RSiH2 Cl
(式中、Rは第3級炭化水素基である。以下同じ)で示
される第3級炭化水素基を有する有機ケイ素化合物の製
造方法に関するものである。そして、この有機ケイ素化
合物はシランカップリング剤、シリル化剤及び他の有機
ケイ素化合物(例えばオルガノトリアルコキシシラン)
製造の原料等として工業的に有用である。
FIELD OF THE INVENTION The present invention is of general formula RSiH 2 Cl.
(In the formula, R is a tertiary hydrocarbon group. The same applies hereinafter.) The present invention relates to a method for producing an organosilicon compound having a tertiary hydrocarbon group. This organosilicon compound is a silane coupling agent, a silylating agent and other organosilicon compounds (eg organotrialkoxysilane).
It is industrially useful as a raw material for production.

【0002】[0002]

【従来の技術】第3級炭化水素基を有するケイ素化合物
の合成方法としては、(1)グリニヤール試薬を用いる
方法、(2)有機リチウムを利用する方法等が知られて
いる。
As a method for synthesizing a silicon compound having a tertiary hydrocarbon group, (1) a method using a Grignard reagent and (2) a method using an organic lithium are known.

【0003】(1)グリニヤール試薬を用いる方法とし
ては、特公昭63−48274号公報にグリニヤール試
薬とトリクロロシラン又は炭化水素基含有ハロゲン化シ
ランとの反応が開示されている。しかしながら、この方
法で得られる反応生成物には、ハロゲン原子が2個以上
存在するか、あるいは第3級炭化水素基以外の炭化水素
基が存在することになり、一般式RSiH2 Clで示さ
れる有機ケイ素化合物は得られない。又、特開平3−3
1290号公報にもグリニヤール試薬と炭化水素基含有
ハロゲン化シランとの反応が開示されているが、やはり
一般式RSiH 2 Clに相当するものは得られない。
(1) A method using a Grignard reagent
For example, in Japanese Examined Patent Publication No. 63-48274, the Grignard trial
Drug and trichlorosilane or hydrocarbon group containing hydrocarbon group
Reactions with orchids are disclosed. However, this person
The reaction product obtained by the method contains two or more halogen atoms.
Hydrocarbons that are present or other than tertiary hydrocarbon radicals
Group is present, the general formula RSiH2Indicated by Cl
No organosilicon compound is obtained. Moreover, JP-A-3-3
No. 1290 also contains a Grignard reagent and a hydrocarbon group.
Although reaction with halogenated silanes is disclosed,
General formula RSiH 2No equivalent to Cl is obtained.

【0004】(2)有機リチウムを利用する方法として
は第3級アルキルリチウムとクロロシラン類を反応させ
る方法が知られているが、この方法は高活性なリチウム
を使用するため特殊な設備を必要とすること、又第3級
アルキルリチウムは空気と接触すると発火する性質があ
り大量に使用する場合には危険度が高いこと等の問題点
を有している。
(2) As a method of utilizing organic lithium, a method of reacting a tertiary alkyllithium with chlorosilanes is known, but this method requires special equipment because highly active lithium is used. In addition, the tertiary alkyllithium has a problem that it has a property of igniting when it comes into contact with air and is highly dangerous when used in a large amount.

【0005】[0005]

【発明が解決しようする課題】本発明は上記のように従
来技術では製造することが困難であった第3級炭化水素
基を有する有機ケイ素化合物を容易かつ収率よく製造す
る方法を提供するものである。
DISCLOSURE OF THE INVENTION The present invention provides a method for easily and efficiently producing an organosilicon compound having a tertiary hydrocarbon group, which has been difficult to produce by the prior art as described above. Is.

【0006】[0006]

【課題を解決するための手段】本発明者らは近年工業的
に製造されるようになったジクロルシランの反応性につ
いて鋭意研究した結果、ケイ素原子に結合している2つ
の水素原子による立体的及び電子的効果等によって、グ
リニヤール試薬中の嵩高い炭化水素基とケイ素の結合反
応が速やかに起こることを見出し、本発明を完成するに
至った。
As a result of diligent research on the reactivity of dichlorosilane, which has been industrially produced in recent years, the inventors of the present invention have found that the steric and steric properties of two hydrogen atoms bonded to a silicon atom are high. The inventors have found that a binding reaction between a bulky hydrocarbon group in a Grignard reagent and silicon occurs rapidly due to an electronic effect or the like, and have completed the present invention.

【0007】すなわち本発明は、一般式RMgX(式
中、Rは第3級炭化水素基、Xはハロゲン原子である。
以下同じ)で示されるグリニヤール試薬とジクロルシラ
ンを反応させて、一般式RSiH2 Clで示される第3
級炭化水素基を有する有機ケイ素化合物を製造する方法
である。
That is, according to the present invention, R is a tertiary hydrocarbon group and X is a halogen atom in the general formula RMgX.
The same shall apply hereinafter) and a Grignard reagent represented by the general formula RSiH 2 Cl
A method for producing an organosilicon compound having a primary hydrocarbon group.

【0008】本発明においては、ジクロルシランと一般
式RMgXで示されるグリニヤール試薬とが工業的に好
ましい穏やかな条件下でも速やかに反応して、第3級炭
化水素基を有する有機ケイ素化合物が容易に得られる。
In the present invention, the dichlorosilane and the Grignard reagent represented by the general formula RMgX react rapidly under industrially preferable mild conditions to easily obtain an organosilicon compound having a tertiary hydrocarbon group. To be

【0009】以下本発明について詳しく説明する。本発
明で利用されるグリニヤール試薬としては、tert−
ブチルマグネシウムクロライド、tert−ブチルマグ
ネシウムブロマイド、1,1−ジメチルプロピルマグネ
シウムクロライド、1,1−ジメチルプロピルマグネシ
ウムブロマイド、1,1−ジエチルプロピルマグネシウ
ムクロライド、1,1−ジエチルプロピルマグネシウム
ブロマイド等が例示される。
The present invention will be described in detail below. The Grignard reagent used in the present invention includes tert-
Butyl magnesium chloride, tert-butyl magnesium bromide, 1,1-dimethylpropyl magnesium chloride, 1,1-dimethylpropyl magnesium bromide, 1,1-diethylpropyl magnesium chloride, 1,1-diethylpropyl magnesium bromide and the like are exemplified. .

【0010】また本発明におけるRSiH2 Clで示さ
れる第3級炭化水素基を有する有機ケイ素化合物として
は、tert−ブチルクロルシラン、1,1−ジメチル
プロピルクロルシラン、1,1−ジエチルプロピルクロ
ルシラン等が例示される。
The organic silicon compound having a tertiary hydrocarbon group represented by RSiH 2 Cl in the present invention is tert-butylchlorosilane, 1,1-dimethylpropylchlorosilane, 1,1-diethylpropylchlorosilane. Etc. are illustrated.

【0011】本発明の製造方法は、先ず、金属マグネシ
ウムとハロゲン化第3級炭化水素化合物とをテトラヒド
ロフランやジエチルエーテル等のエーテル系単独溶媒
下、またはエーテル系溶媒とベンゼンやトルエンなどの
ような他の炭化水素系不活性溶媒との混合溶媒下で反応
させてグリニヤール試薬を作り、このグリニヤール試薬
にジクロルシランを添加して反応させる。
In the production method of the present invention, first, metallic magnesium and a halogenated tertiary hydrocarbon compound are used in an ether-based single solvent such as tetrahydrofuran or diethyl ether, or an ether-based solvent and another such as benzene or toluene. The reaction is performed in a mixed solvent with the hydrocarbon-based inert solvent described in 1 above to prepare a Grignard reagent, and dichlorosilane is added to the Grignard reagent to react.

【0012】本発明における反応温度は、−20℃から
150℃の範囲で適用可能であるが、反応速度及び操作
性等の面から、好ましくは0℃から40℃である。
The reaction temperature in the present invention is applicable in the range of -20 ° C to 150 ° C, but is preferably 0 ° C to 40 ° C in view of reaction rate and operability.

【0013】本発明におけるグリニヤール試薬とジクロ
ルシランとの反応のモル比は1:0.1から1:10の
範囲で行うことができるが、通常は化学量論的に等しい
1:1付近が好ましい。なお原料となるグリニヤール試
薬は、酸素や水分等と反応するので、窒素やアルゴン等
の不活性ガスの存在下で反応を行うことが好ましい。
The molar ratio of the reaction between the Grignard reagent and the dichlorosilane in the present invention can be carried out in the range of 1: 0.1 to 1:10, but it is usually preferable that the stoichiometric ratio is about 1: 1. Since the Grignard reagent as a raw material reacts with oxygen, water and the like, it is preferable to carry out the reaction in the presence of an inert gas such as nitrogen and argon.

【0014】[0014]

【発明の効果】本発明の方法によれば一般式RSiH2
Clで示される第3級炭化水素基を有する有機ケイ素化
合物を工業的に有利な方法で製造することができる。ま
た、本発明により製造される第3級炭化水素基を有する
有機ケイ素化合物は、シランカップリング剤、シリル化
剤及び他の有機ケイ素化合物製造の原料として有用であ
る。
According to the method of the present invention, the general formula RSiH 2
The organosilicon compound having a tertiary hydrocarbon group represented by Cl can be produced by an industrially advantageous method. Further, the organosilicon compound having a tertiary hydrocarbon group produced by the present invention is useful as a raw material for producing a silane coupling agent, a silylating agent and other organosilicon compounds.

【0015】[0015]

【実施例】次に本発明を実施例により具体的に説明す
る。 実施例1 温度計、撹拌器、冷却器及び適下ロートを取り付けた1
000ccの4つ口フラスコにtert−ブチルマグネ
シウムクロライド0.5モルを含むジエチルエーテル溶
液588ccを仕込み、窒素雰囲気下20℃で撹拌をし
ながら、ジクロルシラン54.5g(0.54モル)を
ジエチルエーテル316gとともに適下ロートから適下
し、その後1時間撹拌を続けた。次に反応液をロータリ
ーエバポレーターに仕込み、70torr下に、オイル
バスで85℃に加熱して留出液をえた。引続き、この留
出液を蒸留塔を用いて精製し、tert−ブチルクロル
シランを41g(0.34モル)回収した。なお、反応
液及び最終製品の組成についてはガスクロマトグラフィ
ー分析により確認した。
EXAMPLES Next, the present invention will be specifically described by way of examples. Example 1 1 equipped with a thermometer, a stirrer, a cooler and an appropriate lower funnel
A diethyl ether solution (588 cc) containing 0.5 mol of tert-butyl magnesium chloride was charged into a 000 cc four-necked flask, and 54.5 g (0.54 mol) of dichlorosilane was added to 316 g of diethyl ether while stirring at 20 ° C. under a nitrogen atmosphere. Then, the mixture was properly removed from the appropriate funnel and the stirring was continued for 1 hour. Next, the reaction solution was charged into a rotary evaporator and heated to 85 ° C. in an oil bath under 70 torr to obtain a distillate. Subsequently, this distillate was purified using a distillation column to recover 41 g (0.34 mol) of tert-butylchlorosilane. The composition of the reaction solution and the final product was confirmed by gas chromatography analysis.

【0016】実施例2 温度計、撹拌器、冷却器及び適下ロートを取り付けた3
000ccの4つ口フラスコに、2−クロロ−2−メチ
ルブタン131g(1.23モル)を仕込み、それにヨ
ウ素0.3g、金属マグネシウム35.8g(1.47
モル)及びテトラヒドロフラン1200ccを入れて窒
素雰囲気下に外温を65℃に維持して、テトラヒドロフ
ランを還流しながら3時間反応させてグリニャール試薬
(1−1−ジメチルプロピルマグネシウムクロライド)
1.00モルを含むテトラヒドロフラン溶液1540c
cを得た。引続き、この溶液に17℃でジクロルシラン
101.3g(1.003モル)を約1時間かけて添加
した後、更に約1時間撹拌を継続した。次に反応液を取
り出し、それにヘキサンを3000cc加え、塩を析出
させてろ過し、このろ液を蒸留塔を用いて精製し、1−
1−ジメチルプロピルクロルシランを81グラム回収し
た。なお、反応液及び最終製品の組成についてはガスク
ロマトグラフィー分析により確認した。
Example 2 3 equipped with a thermometer, a stirrer, a cooler and an appropriate lower funnel
To a 000 cc four-necked flask, 131 g (1.23 mol) of 2-chloro-2-methylbutane was charged, and 0.3 g of iodine and 35.8 g (1.47 of magnesium magnesium) were added to the flask.
Mol) and 1200 cc of tetrahydrofuran and keeping the external temperature at 65 ° C. under a nitrogen atmosphere, and reacting for 3 hours while refluxing tetrahydrofuran to give a Grignard reagent (1-1-dimethylpropylmagnesium chloride).
Tetrahydrofuran solution containing 1.00 mol 1540c
I got c. Subsequently, 101.3 g (1.003 mol) of dichlorosilane was added to this solution at 17 ° C. over about 1 hour, and stirring was continued for about 1 hour. Next, the reaction solution was taken out, 3,000 cc of hexane was added thereto to precipitate a salt, which was filtered, and the filtrate was purified using a distillation column.
81 grams of 1-dimethylpropylchlorosilane was recovered. The composition of the reaction solution and the final product was confirmed by gas chromatography analysis.

【0017】比較例1 温度計、撹拌器、冷却器及び適下ロートを取り付けた1
000ccの4つ口フラスコにtert−ブチルマグネ
シウムクロライド0.5モルを含むテトラヒドロフラン
溶液588ccを仕込み窒素雰囲気下に25℃で撹拌を
しながらトリクロルシラン72.6g(0.54モル)
をテトラヒドロフラン316gとともに適下ロートから
適下し、その後3時間撹拌を続けた。次に反応液をロー
タリーエバポレーターに仕込み、70torr下にオイ
ルバスで140℃に加熱して留出液を得た。この液をガ
スクロマトグラフィーで分析した結果、tert−ブチ
ルクロルシランは検出されなかった。
Comparative Example 1 1 equipped with a thermometer, a stirrer, a cooler and an appropriate lower funnel
A 4,000 cc four-necked flask was charged with 588 cc of a tetrahydrofuran solution containing 0.5 mol of tert-butyl magnesium chloride, and 72.6 g (0.54 mol) of trichlorosilane while stirring at 25 ° C. under a nitrogen atmosphere.
Was mixed with 316 g of tetrahydrofuran from an appropriate funnel and then stirred for 3 hours. Next, the reaction solution was charged into a rotary evaporator and heated to 140 ° C. in an oil bath under 70 torr to obtain a distillate. As a result of analyzing this liquid by gas chromatography, tert-butylchlorosilane was not detected.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 橋本 崇男 新潟県西頸城郡青海町大字青海2209番地 電気化学工業株式会社青海工場内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takao Hashimoto 2209 Aomi, Aomi-cho, Nishikubiki-gun, Niigata Prefecture Electrochemical Industry Co., Ltd. Aomi Plant

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 一般式RMgX(式中、Rは第3級炭化
水素基、Xはハロゲン原子である)で示されるグリニヤ
ール試薬とジクロルシランを反応させて、一般式RSi
2 Cl(式中、Rは第3級炭化水素基である)で示さ
れる第3級炭化水素基を有する有機ケイ素化合物の製造
方法。
1. A Grignard reagent represented by the general formula RMgX (wherein R is a tertiary hydrocarbon group and X is a halogen atom) is reacted with dichlorosilane to give the general formula RSi.
A method for producing an organosilicon compound having a tertiary hydrocarbon group represented by H 2 Cl (wherein R is a tertiary hydrocarbon group).
JP4232259A 1992-08-31 1992-08-31 Production of organosilicon compound Pending JPH0673070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4232259A JPH0673070A (en) 1992-08-31 1992-08-31 Production of organosilicon compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4232259A JPH0673070A (en) 1992-08-31 1992-08-31 Production of organosilicon compound

Publications (1)

Publication Number Publication Date
JPH0673070A true JPH0673070A (en) 1994-03-15

Family

ID=16936465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4232259A Pending JPH0673070A (en) 1992-08-31 1992-08-31 Production of organosilicon compound

Country Status (1)

Country Link
JP (1) JPH0673070A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656363A1 (en) * 1993-12-03 1995-06-07 Shin-Etsu Chemical Co., Ltd. Process for preparing a silane having a tertiary hydrocarbon group at the alpha position thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656363A1 (en) * 1993-12-03 1995-06-07 Shin-Etsu Chemical Co., Ltd. Process for preparing a silane having a tertiary hydrocarbon group at the alpha position thereof

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