申请人:Sumitomo Chemical Company, Limited
公开号:US05658489A1
公开(公告)日:1997-08-19
A diphenylacetylene compound of the formula [1]: ##STR1## wherein R is a C.sub.1 -C.sub.12 alkyl group, a C.sub.2 -C.sub.12 alkenyl group or a C.sub.2 -C.sub.16 alkoxyalkyl group; X.sup.1, X.sup.2, X.sup.3, X.sup.4, Y.sup.1, Y.sup.2, Y.sup.3 and Y.sup.4 are independently from each other a --CH-- group, a --CF-- group or a nitrogen atom; A is a hydrogen atom, a fluorine atom, a trifluoromethyl group, a trifluoromethoxy group, a cyano group, a 4-R.sup.1 -(cycloalkyl) group, 4-R.sup.1 -(cycloalkenyl) group or a R.sup.1 --(O).sub.m group in which R.sup.1 is a C.sub.1 -C.sub.12 alkyl group, a C.sub.2 -C.sub.12 alkenyl group or a C.sub.2 -C.sub.12 alkynyl group; and m is 0 or 1, which has an excellent anisotropy of refractive index and a low viscosity and is useful as a component of a liquid crystal composition.
一种二苯基炔化合物,其化学式为[1]: ##STR1## 其中,R为C1-C12烷基、C2-C12烯基或C2-C16氧烷基;X1、X2、X3、X4、Y1、Y2、Y3和Y4各自独立为--CH--基团、--CF--基团或氮原子;A为氢原子、氟原子、三氟甲基、三氟甲氧基、氰基、4-R1-(环烷基)基团、4-R1-(环烯基)基团或R1--(O)m基团,其中R1为C1-C12烷基、C2-C12烯基或C2-C12炔基;m为0或1,具有优异的折射率各向异性和低粘度,可用作液晶组合物的组分。