摘要
以磷配体对氯铂酸硅氢加成催化剂进行改性,以γ-氯丙烯和甲基二氯氢硅为原料合成甲基(γ-氯丙基)二氯硅烷。探讨了该催化剂对硅氢加成反应的催化活性,较系统地研究了催化剂用量、配体与氯铂酸摩尔比、温度控制等因素对产品收率的影响。实验表明:氯铂酸-磷配体催化剂是合成甲基(γ-氯丙基)二氯硅烷的良好催化剂,在n(氯铂酸):n(磷配体)=1∶3,催化剂用量为反应物料总摩尔数的1.5×10-5,一次投料方式,反应时间3.0h的优化条件下,甲基(γ-氯丙基)二氯硅烷的产率可达77.9%。
γ-Chloropropyl-Methyldichlorosilane was synthesized from allyl chloride and dichloromethylsilane in the presence of chloroplatinic acid/phosphorus complex , which was obtained by modifying chloroplatinic acid with phosphorus complex. Catalytic activity of chloro-platinic acid/phosphorus complex on the hydrosilylation was discussed. The quantity of catalyst, molar ratio of complex to chloroplatinic acid, controlling mode of temperature etc. factors influ- encing the yield of objective product were investigated. The optimum conditions are. molar ratio of chloroplatinic acid to phosphorus complex is 1 ：3;the molar quantity of catalyst is equal to 1.2× 10^-5 of feed stock,and the reaction time is 3. 0h. The Experiment showed that chloroplatinic acid-phosphorus complex was an excellent catalyst for synthesizing 3-Chloropropyl-Methyldichloro-silane and its yield can reach 77.9 %.
出处
《化工新型材料》
CAS
CSCD
北大核心
2006年第9期17-19,共3页
New Chemical Materials
基金
江西农业大学硕士科研启动基金[(2004)1388]
关键词
硅氢加成
甲基二氯氢硅
γ氯丙烯
氯铂酸
催化剂
hydrosilylation,allyl chloride,dichloromethylsilane,chloroplatinic acid, catalyst
