二甲基二苄基硅烷的合成  

Synthesis and Identification of the Dimethybis(phenylmethyl)silane

作　　者：叶尚辉[1] 宋才生[1] 付长清[1] 刘勇军[1] 刘晓玲[1] 

机构地区：[1]江西师范大学化学化工学院,江西南昌330027

出　　处：《江西师范大学学报（自然科学版）》2005年第4期345-347,共3页Journal of Jiangxi Normal University(Natural Science Edition)

基　　金：国家"863"计划(2002AA333120);国家自然科学基金(20264001)资助项目

摘　　要：以二氯二甲基硅烷、卤化苄、金属镁为起始原料,通过格氏反应制得了具有反应性的有机硅单体———二甲基二苄基硅烷,考察了合成工艺、溶剂类型及反应物的浓度对反应的影响.用FT-IR1、HNMR、13CNMR及熔点仪对产物的结构进行了分析和鉴定.结果表明,用氯化苄做烃化试剂、用THF作溶剂,浓度控制在1.25mol/L较好;用“逆序法”可制得高纯度的二甲基二苄基硅烷,合成工艺简单,操作方便,且产率较高.A reactive silicate monomer dimethy bis （phenylmethyl）silane （DMDPMS） was prepared by dichlorodimethylsilane and phenyl methyl chloride, in the present of Mg, and was analyzed and identified by FF- IR, ^1H NMR, ^13C NMR and melting - point. The effect of the process, solution and concentration on the purity and productivities of the product was studied, which results show that the using phenylmethyl chloride as alkylation reagent, THF as solution,whose concentration is 1.25 mol/L, and the “novel process” was better for the preparation of DMDPMS, whose melting point was 57 - 58 ℃, compared with normal process .

关 键 词：二甲基二苄基硅烷 硅单体 合成工艺 分析和鉴定 

分 类 号：O627.41[理学—有机化学]