JPS5978195A - Disilacyclobutene derivative and its preparation - Google Patents

Disilacyclobutene derivative and its preparation

Info

Publication number
JPS5978195A
JPS5978195A JP18858482A JP18858482A JPS5978195A JP S5978195 A JPS5978195 A JP S5978195A JP 18858482 A JP18858482 A JP 18858482A JP 18858482 A JP18858482 A JP 18858482A JP S5978195 A JPS5978195 A JP S5978195A
Authority
JP
Japan
Prior art keywords
dimethyl
butyl
disilacyclobutene
derivative
tert
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
JP18858482A
Other languages
Japanese (ja)
Inventor
Isao Koga
勲 古賀
Hiroshi Ono
浩 小野
Nobumasa Otake
伸昌 大竹
Yasushi Kitayama
北山 靖
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.)
JNC Corp
Original Assignee
Chisso Corp
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 Chisso Corp filed Critical Chisso Corp
Priority to JP18858482A priority Critical patent/JPS5978195A/en
Publication of JPS5978195A publication Critical patent/JPS5978195A/en
Pending legal-status Critical Current

Links

Abstract

NEW MATERIAL:1, 2-Dimethyl-1, 2-di-t-butyl-3, 4-diphenyl-1, 2-disila-3-cyclobutene of formula. PROCESS:The objective compound is prepared by reacting diphenylacetylene with 1,2-dimethyl-1,2-di-t-butyl-1,2-dihalodisilane (preferably sym-dimethyl-di-t-butyldichlorodisilane) in the presence of an alkali metal such as lithium, sodium, etc. in THF solvent in an inert gas atmosphere under mild condition, preferably at 20-40 deg.C under normal or slightly positive pressure for 8-16hr.

Description

【発明の詳細な説明】 本発明は新規なジシラシクロブテン誘導体およびその製
造法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel disilacyclobutene derivative and a method for producing the same.

従来類似構造のジシラシクロブテン誘導体としては1.
1.2.2−テトラメチル−8,4−ジフェニル−1,
2−ジシラー8−シクロブテン(以下(A)と表わす。
Conventional disilacyclobutene derivatives with similar structures include 1.
1.2.2-tetramethyl-8,4-diphenyl-1,
2-disylar 8-cyclobutene (hereinafter referred to as (A)).

)、1,1,2,2゜3.4−ヘキサメチル−1,2−
ジシラー8−シクロブテン(以下(B)と表わす。)等
が知られている。すなわちジャーナル・オプ・オーガノ
メタリック・ケミストリー(JournatofOrg
anometatic Chemistry )第16
2巻048頁(1978年刊)によれば、(A)はジフ
ェニルアセチレンと1−フェニル−7,7,8,8−テ
トラメチル−7,8−ジシラビシクロ(22.2〕オク
タジエンまたは7.7..8.8−テトラメチル−7,
8−ジシラー2,8−ベンゾビシクロ(2,2,2)オ
クタジエンから250−270°Cまたは850°Cで
合成されている。また同誌第52巻C21頁(1978
年刊)によれば(B)は2−ブチンと1.2−ジメトキ
シテトラメチルジシランとから400℃で合成されてい
る。
), 1,1,2,2゜3.4-hexamethyl-1,2-
Disilar 8-cyclobutene (hereinafter referred to as (B)) and the like are known. Journal of Organometallic Chemistry (JournatofOrg)
Anometic Chemistry) No. 16
According to Vol. 2, page 048 (published in 1978), (A) is diphenylacetylene and 1-phenyl-7,7,8,8-tetramethyl-7,8-disilabicyclo(22.2]octadiene or 7.7. .8.8-tetramethyl-7,
8-Disilar Synthesized from 2,8-benzobicyclo(2,2,2)octadiene at 250-270°C or 850°C. Also, Volume 52, page C21 of the same magazine (1978
According to the annual publication), (B) is synthesized from 2-butyne and 1,2-dimethoxytetramethyldisilane at 400°C.

(A)ならびK(B)は酸素との反応性が大きく、常温
下で容易に酸化されてそれぞれ対応する1−オキサ−2
,5−ジシラー8−シクロペンテン誘導体となる。(A
)および(B)は酸化のほかに加水分解をも受は易く、
これらの性質のためその取扱いには特別な手法が必要で
ある。さらにまた(A)および(B)には空気中で容易
には取扱えないという欠点のほかK、製法上でも一方に
複雑な原料を用い、かつ特殊な装置を使う高温の反応に
よらなければ得られないという難点がある。
(A) and K(B) have high reactivity with oxygen and are easily oxidized at room temperature, resulting in the corresponding 1-oxa-2
, 5-disylar 8-cyclopentene derivative. (A
) and (B) are susceptible to hydrolysis as well as oxidation;
These properties require special techniques for their handling. Furthermore, (A) and (B) have the disadvantage that they cannot be easily handled in air, and the manufacturing process requires complicated raw materials and high-temperature reactions using special equipment. The problem is that you can't get it.

本発明の目的は上記の欠点を解決する新しいジシラシク
ロプテン誘導体を提供することおよび取扱い易い原料か
らの温和な反応による該ジシラシクロブテン誘導体の製
造法を提供することである。
The object of the present invention is to provide a new disilacyclobutene derivative which solves the above-mentioned drawbacks, and to provide a method for producing the disilacyclobutene derivative by a mild reaction from easy-to-handle raw materials.

本発明の第一のクシ2シクロブテン誘導体は式で表わさ
れる1、2−ジメチル−1,2−ジーtert−ブチル
ー8.4−ジフェニル−1,2−ジシラー3−シクロブ
テン(以下(1)と表わす。)である。
The first comb-2-cyclobutene derivative of the present invention is 1,2-dimethyl-1,2-di-tert-butyl-8,4-diphenyl-1,2-disilar-3-cyclobutene (hereinafter referred to as (1)). ).

本発明の第二はジフェニルアセチレフト1.2−ジメチ
ルジーtert−ブチル−1,2−ジハロジシランとを
#丘ソ当量のアルカリ金属の存在でテトラヒドロフラン
溶媒中で不活性ガス雰囲気下に温和な条件で反応させる
ことを特徴とする(1)の製造法である。
The second aspect of the present invention is to prepare diphenyl acetyleft 1,2-dimethyl di-tert-butyl-1,2-dihalodisilane in the presence of an alkali metal equivalent to #1 in a tetrahydrofuran solvent under mild conditions under an inert gas atmosphere. This is the production method (1), which is characterized by carrying out a reaction.

本発明の(1)の一方の原料である1、2−ジメチルジ
ーtert−ブチル−1,2−ジハロジシランとしては
高純度品の得られ易い5yrn−ジメチルジーtert
−ブチルジクロ四ジシランが望ましい。アルカリ金属と
してはリチウム、ナトリウム、カリウム等アルカリ金属
なら何でも用いられるが、中でもリチウム、ナトリウム
が好ましい。反応は攪拌装置および還流コンデンサーを
つけたガラス製またはポリ四フッ化エチレンライニング
製の反応器で行われる。
As the 1,2-dimethyl di-tert-butyl-1,2-dihalodisilane which is one of the raw materials in (1) of the present invention, 5yrn-dimethyl di-tert, which is easily obtained in high purity, is used.
-Butyldichlorotetradisilane is preferred. As the alkali metal, any alkali metal such as lithium, sodium, potassium, etc. can be used, and among them, lithium and sodium are preferred. The reaction is carried out in a glass or polytetrafluoroethylene lined reactor equipped with a stirrer and a reflux condenser.

反応器中で溶媒のテトラヒドロフランに原料とt1ソ当
量のアルカリ金属を加え不活性ガス雰囲気でかき混ぜ溶
解する。溶解は常温ないし溶媒の沸騰還流する温度で行
われる。この溶媒にはy等モルのジフェニルアセチレン
とsym −ジメチル−シーtert−プチルジハロジ
シ2ントヲ加え、不活性ガス雰囲気下に攪拌し反応を行
わしめる。不活性ガスとしてはアルゴン、窒素などが用
いられる。反応温度は0℃ないし溶媒の沸騰還流する温
度で行えるが、20〜40”Cが好ましい。反応圧力は
常圧または空気の混入を 5− 防止するためわずかに加圧して行われる。反応時間は反
応温度、原料等によって異なるが8〜16時間行えば充
分である。生成物の単離は抽出剤を加えて副生じたハロ
ゲン化アルカリを炉別した後、抽出液の分溜によシ行わ
れる。すなわち抽出液から減圧下に抽出剤、反応溶媒お
よび未反応原料を溜去し缶残として淡褐色の粗製品が得
られる。抽出剤としてはシクロヘキサン、石油エーテル
などが用いられる。粗製品はガスクロマトグラフ分析に
よると和尚に高純度の(I)であるが、その同定は分堆
ガスクロによシ精製した試料について元素分析、マスス
ペクトル、’H核磁気共鳴スペクトルおよび赤外吸収ス
ペクトルを適用して(1)の構造を確認した。
In a reactor, the raw material and t1 equivalent of alkali metal are added to tetrahydrofuran as a solvent and are stirred and dissolved in an inert gas atmosphere. Dissolution is carried out at room temperature or at the boiling and refluxing temperature of the solvent. To this solvent were added y equimolar amounts of diphenylacetylene and 2 tones of sym-dimethyl-tert-butyl dihalide, and the mixture was stirred under an inert gas atmosphere to carry out the reaction. Argon, nitrogen, etc. are used as the inert gas. The reaction temperature is 0°C to the boiling and refluxing temperature of the solvent, preferably 20 to 40"C. The reaction pressure is normal pressure or slightly increased pressure to prevent the incorporation of air. The reaction time is Although it varies depending on the reaction temperature, raw materials, etc., it is sufficient to carry out the reaction for 8 to 16 hours.The product is isolated by adding an extractant and separating the by-produced alkali halide in a furnace, and then fractionating the extract. That is, the extractant, reaction solvent, and unreacted raw materials are distilled off from the extract under reduced pressure, and a pale brown crude product is obtained as a residue.Cyclohexane, petroleum ether, etc. are used as the extractant.The crude product is According to gas chromatography analysis, it is highly pure (I), but its identification was determined by applying elemental analysis, mass spectra, 'H nuclear magnetic resonance spectra, and infrared absorption spectra to samples purified by fractional gas chromatography. The structure of (1) was confirmed.

(I)は(A)、(B)等の既存のジシランクロブテン
類と違い、酸素に対してもまた水に対しても安定であシ
、通常の雰囲気下に取扱えるという特徴を有している。
Unlike existing disilane-crobutenes such as (A) and (B), (I) has the characteristics that it is stable against oxygen and water, and can be handled under normal atmosphere. ing.

すなわち30℃の空気恒温槽内に48時間(1)を放置
したが(A)や(B)の場合に見られる6− 収スペクトルから確認できた。
That is, although (1) was left in an air constant temperature bath at 30° C. for 48 hours, it was confirmed from the 6-yield spectra seen in the cases of (A) and (B).

なお(1)を150〜200℃で空気中に暴露したとこ
ろ、既存のジシラシクロプテンと同様に酸化されて、2
.5−ジメチル−2,5−ジーtert−ブチルー8,
4−ジフェニル−1−オキサ−8−シクロペンテン(融
点94−97℃)となった。
When (1) was exposed to air at 150 to 200°C, it was oxidized in the same way as existing disilacycloptene, resulting in 2
.. 5-dimethyl-2,5-di-tert-butyl-8,
The resulting product was 4-diphenyl-1-oxa-8-cyclopentene (melting point 94-97°C).

次に実施例によって(I)の製造法の詳細とCI)の同
定について説明する。
Next, the details of the production method of (I) and the identification of CI) will be explained with reference to Examples.

実施例 溶媒テトラヒドロフラン80g1に0.56fの金属リ
チウムを溶解し、ジフェニルアセチレン6.6gを加え
室温で窒素算囲気下に攪拌を行っている反応器へ20肩
lのテトラヒドロフランに溶解した10yのsym−ジ
メチルジーtert−ブチルジクロロジシランの溶液を
滴下し、室温で12時間混合攪拌を続けた。
Example 0.56f of metallic lithium was dissolved in 80g of solvent tetrahydrofuran, 6.6g of diphenylacetylene was added, and 10y of sym-metal dissolved in 20l of tetrahydrofuran was added to a reactor stirred at room temperature under a nitrogen atmosphere. A solution of dimethyl di-tert-butyl dichlorodisilane was added dropwise, and mixing and stirring was continued for 12 hours at room temperature.

反応液に抽出剤シクロヘキサン500g1を加え副生じ
た塩化リチウムを炉別した後、減圧蒸溜によジシクロヘ
キサン、テトラヒドロフランおよび未反応原料を溜去し
缶残として淡褐色の粗製品9.5gを得た。これのガス
クロ分析の結果から収率は61%であった。粗製品から
分取ガスクロによシ精製した試料について実施した分析
の結果、マススペク)ルm/e値878から(1)の分
子量378が示唆され、また第1図に示す赤外吸収スペ
クトルからは(f)8075.3060.8025cI
I−1(イ)1600 、  t  567 m−1h
(つ)1245ffi−1の各特性吸収がそれぞれ(7
)はフェニル基、(イ)はC−Cに隣接するフェニル基
、(つ)はSt −CH5の存在を顕らかにしている。
After adding 500 g of extractant cyclohexane to the reaction solution and removing the by-produced lithium chloride, dicyclohexane, tetrahydrofuran, and unreacted raw materials were distilled off under reduced pressure to obtain 9.5 g of a pale brown crude product as a residue. . As a result of gas chromatography analysis, the yield was 61%. As a result of analysis carried out on a sample purified by preparative gas chromatography from the crude product, the mass spectrum m/e value of 878 suggested a molecular weight of (1) of 378, and the infrared absorption spectrum shown in Figure 1 suggested that the molecular weight of (1) was 378. (f)8075.3060.8025cI
I-1 (I) 1600, t 567 m-1h
(1) Each characteristic absorption of 1245ffi-1 is (7
) reveals the phenyl group, (a) reveals the phenyl group adjacent to C-C, and (tsu) reveals the presence of St-CH5.

第2図に示される1H核磁気共鳴スペクトルのケミカル
シフトδ(ppm)の(a)0.41.0.61の単一
線、(b) 0.95.1.10の単一線、(c) 7
.00の多重線はそれぞれ(a)はSt −CH3、(
b)はC−CH3、(c)はフェニル基を表わしておシ
、(a)と(b)の二組の単一線は(1)が二つの幾何
異性体混合物であることを示唆している。
The chemical shift δ (ppm) of the 1H nuclear magnetic resonance spectrum shown in Figure 2 is (a) a single line at 0.41.0.61, (b) a single line at 0.95.1.10, (c) 7
.. 00 multiplets are respectively (a) St -CH3, (
b) represents C-CH3, (c) represents a phenyl group, and the two sets of single lines in (a) and (b) suggest that (1) is a mixture of two geometric isomers. There is.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は(1)の赤外吸収スペクトル図であり、第2図
はその核磁共鳴スペクトル図である。 以上 二9−
FIG. 1 is an infrared absorption spectrum diagram of (1), and FIG. 2 is a nuclear magnetic resonance spectrum diagram thereof. Above 29-

Claims (4)

【特許請求の範囲】[Claims] (1)式 で表わされるジシラシクロブテン誘導体。(1) Formula A disilacyclobutene derivative represented by (2)ジフェニルアセチレンと1.2−ジメチル−1,
2−ジーtert−ブチルー1.2−ジハロジシランと
をアルカリ金属とともにテトラヒドロフラン溶媒中で不
活性ガス雰囲気下に温和な条件で反応させることを特徴
とする特許請求の範囲第1項記載のジシラシクロプテン
誘導体の製造法。
(2) Diphenylacetylene and 1,2-dimethyl-1,
Disilacycloptene according to claim 1, characterized in that 2-di-tert-butyl-1,2-dihalodisilane is reacted with an alkali metal in a tetrahydrofuran solvent under mild conditions in an inert gas atmosphere. Method for producing derivatives.
(3)1.2−ジメチル−1,2−ジーtert−ブチ
ルー1.2−ジハロジシランがsym−ジメチルジーt
ert−ブチルジクロロジシランである特許請求の範囲
第2項記載のジシラシクロブテン誘導体の製造法。
(3) 1,2-dimethyl-1,2-di-tert-butyl-1,2-dihalodisilane is sym-dimethyl di-tert
The method for producing a disilacyclobutene derivative according to claim 2, which is ert-butyldichlorodisilane.
(4)アルカリ金属がリチウムである特許請求の範囲第
2項および第8項記載のジシラシクロプテン誘導体の製
造法。
(4) The method for producing a disilacycloptene derivative according to claims 2 and 8, wherein the alkali metal is lithium.
JP18858482A 1982-10-27 1982-10-27 Disilacyclobutene derivative and its preparation Pending JPS5978195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18858482A JPS5978195A (en) 1982-10-27 1982-10-27 Disilacyclobutene derivative and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18858482A JPS5978195A (en) 1982-10-27 1982-10-27 Disilacyclobutene derivative and its preparation

Publications (1)

Publication Number Publication Date
JPS5978195A true JPS5978195A (en) 1984-05-04

Family

ID=16226226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18858482A Pending JPS5978195A (en) 1982-10-27 1982-10-27 Disilacyclobutene derivative and its preparation

Country Status (1)

Country Link
JP (1) JPS5978195A (en)

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