申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US05547606A1
公开(公告)日:1996-08-20
A silacyclohexane compound represented by the following general formula (I). ##STR1## In this formula, R denotes hydrogen, a linear-chain alkyl group with a carbon number of 1-10, a branched-chain alkyl group with a carbon number of 3-8, an alkoxyalkyl group with a carbon number of 2-7, a fluoroalkyl group with a carbon number of 1-10 in which one or two hydrogen atoms are substituted by florine atom(s), or an alkenyl group with a carbon number of 2-8. For the groups ##STR2## at least one of these is a trans-1-sila-1,4-cyclohexylene or trans-4-sila-1,4-cyclohexylene group whose silicon at position 1 or position 4 has a substitutional group(s) of H, F, Cl or CH.sub.3, and the other denotes a trans-1,4-cyclohexylene group. X denotes a CN, F, Cl, CF.sub.3, CF.sub.2 Cl, CHFCl, OCF.sub.3, OCHF.sub.2, OCF.sub.2 Cl, OCHFCl, R or OR group (R is the same as defined earlier). Y denotes H or F. Z denotes H or F.
以下是通式(I)所代表的
硅杂
环己烷化合物。在此通式中,R代表氢、碳数为1-10的线性链烷基、碳数为3-8的支链烷基、碳数为2-7的烷氧基烷基、碳数为1-10的氟烷基,其中一个或两个氢原子被
氟原子取代,或碳数为2-8的烯基。对于##STR2##中的基团,至少有一个是一种trans-1-sila-1,4-
环己烯基团或trans-4-sila-1,4-
环己烯基团,其
硅在1号或4号位置具有取代基(H、F、Cl或CH.sub.3),另一个表示trans-1,4-
环己烯基团。X表示CN、F、Cl、CF.sub.3、CF.sub.2 Cl、CHFCl、OCF.sub.3、OCHF.sub.2、OCF.sub.2 Cl、OCHFCl、R或OR基团(其中R与前面定义的相同)。Y表示H或F。Z表示H或F。