Patent ID: 6139924
Filing Date: 2000-10-31
Classification: C07D,C09K

Abstract:
Fluorine containing, chiral liquid crystal compounds represented by the formula: ##STR54## wherein: D is non-directionally selected from the group consisting of a covalent bond,--C(.dbd.O)--O--C.sub.r H.sub.2r --, --O--C.sub.r H.sub.2r --, --O--(O.dbd.)C--C.sub.r H.sub.2r --, --C.tbd.C--, --CH.dbd.CH--, --C(.dbd.O)--,--O(--C.sub.s H.sub.2s O--).sub.t C.sub.r' H.sub.2r' --, --C.sub.r H.sub.2r --, (--C.sub.s H.sub.2s O--).sub.t C.sub.r' H.sub.2r' --, --O--, --S--, --OSO.sub.2 --, --SO.sub.2 --, --SO.sub.2 --C.sub.r H.sub.2r --,--C.sub.r H.sub.2r --N--SO.sub.2 --, ##STR55##--C.sub.r H.sub.2r --N--C(.dbd.O)--, --CH.dbd.N--,and combinations thereof;R.sub.f is an achiral fluoroalkyl, perfluoroalkyl, fluoroether, or perfluoroether group;r and r' are independently integers of 0 to about 20, s is independently an integer of 1 to about 10 for each (C.sub.s H.sub.2s O), t is an integer of 1 to about 6, and p is an integer of 0 to about 4;R.sub.h is a linear or branched alkyl group of 1 to about 10 carbon atoms;--CHF*-- represents a chiral center;v is an integer of from 2 to about 10 and w is an integer of 0 or 1, with the proviso that v+w is at least 3;where one or more non-adjacent --CH.sub.2 -- groups may be replaced with an oxygen atom and where one or more ring hydrogen atoms can be replaced by fluorine atoms.