原位格氏法合成甲基苯基二甲氧基硅烷  

Synthesis of Methylphenyldimethoxysilane via In-Situ Grignard Reaction

作　　者：池圣贤 姜振华 袁园 CHI Shengxian;JIANG Zhenhua;YUAN Yuan(Institute of Research and Design,Wuhan Institute of Technology,Wuhan 430073,China)

机构地区：[1]武汉工程大学研究设计院,武汉430073

出　　处：《有机硅材料》2024年第2期32-35,共4页Silicone Material

摘　　要：以氯苯(PhCl)、甲基三甲氧基硅烷(MTMS)和镁(Mg)为原料,甲基三氯硅烷(MTCS)为促进剂,通过原位格氏法一步制得甲基苯基二甲氧基硅烷[MePhSi(OMe)_(2)],并设计了4因素3水平的正交实验考察各工艺条件对产物收率的影响。结果表明,较佳的工艺条件为:Mg、PhCl、MTMS和MTCS的物质的量之比为1.0∶1.4∶2.5∶0.3,回流反应8 h,此时产物收率可达78%。Methylphenyldimethoxysilane[MePhSi(OMe)_(2)]were synthesized in one step with chlorobenzene(PhCl),magnesium(Mg)power,and methyltrimethoxysilane(MTMS)as the raw materials,and methyltrichlorosilane(MTCS)as accelerator via in-situ Grignard reaction.The factors which influencing the yield of the products were explored and the optimum parameters for the reaction were determined in orthogonal experiment.The results indicate that when the molar ratio of Mg,PhCl,MTMS,and MTCS is 1.0∶1.4∶2.5∶0.3,the reflux reaction time is 8 hours,the synthetic yield of methylphenyldimethoxysilane is 78%.

关 键 词：甲基苯基二甲氧基硅烷 原位格氏法 氯苯 促进剂 正交试验 

分 类 号：TQ264.14[化学工程—有机化工] O627.413[理学—有机化学]