Grignard反应一步法合成二环己基二甲氧基硅烷  

Synthesis of Dicyclohexyldimethoxysilane by One-step Grignard Reaction Method

作　　者：赵冬冬[1] 金炼铁[1] 

机构地区：[1]武汉工程大学化学与制药学院,湖北武汉430074

出　　处：《当代化工》2011年第8期781-783,共3页Contemporary Chemical Industry

摘　　要：采用Grignard反应一步法合成了二环己基二甲氧基硅烷。14 g镁屑、11 g氯代环己烷和30 g THF投入反应瓶,在回流状况下滴加由36.4 g四甲氧基硅烷、44 g氯代环己烷和120 g石油醚90～120组成的混合溶液;回流4 h后冷却,过滤;母液精馏得产物55 g,收率86.9%(以四甲氧基硅烷计),质量分数≥99.0%。Dicyclohexyldimethoxysilane was synthesized by one step Grignard reaction method.Firstly,14 g magnesium,11 g chlorocyclohexane and 30 g THF were added into the flask.Then 36.4 g tetramethoxysilane,44 g chlorocyclohexane and 120 g petroleum ether 90～120 were added to the system in the case of reflux.After 4 h,55 g dicyclohexyldimethoxysilane was obtained by separation and rectification.The yield was 86.9%,the purity was 99%.

关 键 词：二环己基二甲氧基硅烷 氯代环己烷 四甲氧基硅烷 给电子体 

分 类 号：TQ221[化学工程—有机化工]