The synthesis of [bis(trifluoromethyl)amino-oxy]-substituted dialkyldichlorosilanes and their conversion into polysiloxanes
作者:Graham E. Ducker、Anthony E. Tipping
DOI:10.1016/0022-1139(93)02917-4
日期:1994.3
(CF3)2NOCH2CH2CH2SiMeCl2 (29) are converted into the corresponding polysiloxanes (‘prepolymers’ of low molecular weight) by reaction with reagents including water, acid, base and metal oxides; equilibration of the polysiloxane ‘prepolymer’ 38, derived from dichlorosilane 29 by heating with powdered KOH, affords a solid rubbery polysiloxane.
羟基(CF 3)2 NO·(1)对硅烷Et 2 SiCl 2的乙基的攻击发生在相对于硅的α和β位置(比率31:45),而硅烷Pr ñ SiMeCl 2攻击发生在丙基的β位上。对于乙硅烷Me 3 SiCH 2 SiMe 3,用氧基1处理形成的主要含硅产物是Me 3 SiF,(CF 3)2 NOSiMe 3和Me 3 SiSiMe 3。斯皮尔催化(H 2 PtCl 6)将硅烷HSiCl 2 X(XMe和Cl)加到烯烃(CF 3)2 NOCH 2 CHCH 2中得到加合物(CF 3)2 NOCH 2 CH 2 CH高产率的2 SiCl 2 X(29,XMe)和(28,XCl)。取代的二氯硅烷(CF 3)2 NOCH 2 CH 2 SiEtCl 2(9),(CF 3)2通过与水,酸,碱和水等试剂反应,将NOCHMeCH 2 SiMeCl 2(14)和(CF 3)2 NOCH 2 CH 2 CH