申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US05523439A1
公开(公告)日:1996-06-04
Processes for selectively preparing silacyclohexane compounds of a trans form from diarylsilacyclohexane compounds of the general formula ##STR1## wherein Ar and Ar' independently represent a phenyl group or a tolyl group, and Q represents a group of the type indicated below ##STR2## The diarylsilacyclohexanes are converted to dihalosilacyclohexanes and then to hydrohalosilacyclohexanes directly or via dialkoxylation and/or reduction step. The hydrohalosilacyclohexane are finally reacted with organometallic compounds having a group, Q', of the type indicated below ##STR3## to obtain silacyclohexane compounds of the general formula ##STR4## wherein Q' and Q have, respectively, the groups indicated hereinabove.
从一般式##STR1##中的二芳基硅环己烷化合物选择性制备反式硅环己烷化合物的过程,其中Ar和Ar'分别代表苯基或甲苯基,Q代表下面指示的类型的基团##STR2##。将二芳基硅环己烷转化为二卤代硅环己烷,然后直接或通过二烷氧基化和/或还原步骤转化为氢卤代硅环己烷。最后,将氢卤代硅环己烷与具有下面指示类型的基团Q'的有机金属化合物反应##STR3##,以获得一般式##STR4##的硅环己烷化合物,其中Q'和Q分别具有上述指示的基团。