Synthesis and desilylation of some bis(trimethylsilyl)alkenes and polymers bearing bis(silyl)alkenyl groups
作者:Kazem D. Safa、Mina Namvari、Akbar Hassanpour、Shahin Tofangdarzadeh
DOI:10.1016/j.jorganchem.2009.03.011
日期:2009.7
The synthesis of various vinylbis(silanes) from some aryl and heteroaryl aldehydes and (Me3Si)3CLi in Et2O is described. Friedel–Crafts reaction of 1,1-bis(trimethylsilyl)-2-(2-naphthyl)ethene with various acyl chlorides (RCOCl, R = Me, Et, i-Pr, i-Bu, n-pent) gave the corresponding α-silyl-α,β-unsaturated enones with high E steroselectivity. Moreover, poly(styrene)-co-[2,2-bis(trimethylsilyl)ethenyl(styrene)]
描述了由一些芳基和杂芳基醛和(Me 3 Si)3 CLi在Et 2 O中合成各种乙烯基双(硅烷)的方法。Friedel – 1,1-双(三甲基甲硅烷基)-2-(2-萘基)乙烯与各种酰氯(RCOCl,R = Me,Et,i -Pr,i -Bu,n -pent)的工艺反应得到相应的α -甲硅烷基- α,β不饱和烯酮与高ë立体选择性。此外,通过带有侧链烯酮功能的聚合物与(Me 3 Si)3 CLi的反应获得的聚(苯乙烯)-共聚物-[2,2-双(三甲基甲硅烷基)乙烯基(苯乙烯)]与相同的酰氯反应催化量的AlCl的存在3给出具有α-甲硅烷基-α,β-不饱和烯酮和α,β-不饱和烯酮的新大分子。