二环戊基二甲氧基硅烷的合成工艺研究  

STUDY ON THE SYNTHESIS OF DICYCLOPENTYLDIMETHOXYSILANE

作　　者：曾小君[1] 华巍 

机构地区：[1]常熟理工学院化学与材料工程系,常熟215500 [2]常熟市湖滨化工有限公司

出　　处：《石油炼制与化工》2007年第12期28-32,共5页Petroleum Processing and Petrochemicals

基　　金：江苏省高校自然科学研究课题基金资助项目(05KJD150002);江苏省新型功能材料重点建设实验室开放研究课题基金资助项目(05KFJJ001)

摘　　要：介绍了以二环戊基二氯硅烷（DCPDCS）为中间产物合成二环戊基二甲氧基硅烷（DCPDMS）的方法。首先通过研究得到了合成DCPDCS的最佳工艺条件，即反应压力1．0～1．2MPa，n（二氯硅烷）／n（环戊烯）=1．16，反应温度85～95℃，催化剂用量1．2g，异辛醇用量2．3g，反应时间6～7h。在该条件下环戊烯转化率可达96％以上，DCPDCS收率可达88％以上。DCPDMS的合成条件为：第一阶段n（甲醇）／n（DCPDCS）=1．33，反应温度为室温；第二阶段n（甲醇）／n（DCPDCS）=4．95，反应温度低于50℃。在该条件下DCPDCS转化率为87．6％，DCPDMS收率为79．5％。Dicyclopentyldimethoxysilane（DCPDMS） was synthesized by the addition of silicon hydride method and the reaction conditions were studied. Firstly,dicyclopentyldichlorosilane（DCPDCS）, a reaction intermediate,was prepared under the optimal conditions of a reaction pressure range of 1.0- 1.2 MPa, a n （dichlorosilane）/n （cyclopentene）of 1. 16, a reaction temperature range of 85-95℃, a catalyst dosage of 1.2 g,an isooctyl alcohol dosage of 2.3 g and a reaction time range of 6-7 h. The conversion of cyclopentene and the yield of DCPDCS were 96. 2% and 88. 9%, respectively. Then DCPDMS was synthesized under the following reaction conditions： in the first reaction stage and the second reaction stage, the n （methanol）/n （DCPDCS） was 1. 33 and 4. 95, respectively; the reaction temperature was ambient temperature and below 50 ℃ ,respectively. The conversion of DCPDCS reached 87.6%,and the DCPDMS yield was 79.5%.

关 键 词：二环戊基二甲氧基硅烷 二环戊基二氯硅烷 加成反应 合成 

分 类 号：TQ264.1[化学工程—有机化工]