公开(公告)号：DE4211562A1

公开(公告)日：1993-10-14

申请号：DE4211562

申请日：1992-04-07

Applicant: HOECHST AG

Inventor： SCHEROWSKY GUENTER PROF DR ,  LOTZ ANDREAS DIPL CHEM

IPC: C07D303/22 ,  C07D303/48 ,  C07D405/12 ,  C09K19/58 ,  C07D303/20 ,  C07D407/12 ,  C09K19/34 ,  G02F1/13 ,  G02F1/137 ,  G09F9/35

Abstract: The invention relates to chiral oxirane derivatives of the general formulae (I) and (II) in which, for example: R is a straight-chained or branched alkyl radical with 2 to 22 C atoms (with or without an asymmetrical C atom) in which one or more -CH2- groups may also be replaced by -O-, -CO-, -CH=CH-, -C=C-, DELTA , 1,4-cyclohexylene or -Si(CH3)2- with the proviso that oxygen atoms may not be directly bonded together and/or one or more H atoms of the alkyl radical may be substituted by -F, -Cl, -Br, -CN, -SCN, OCN or N3; n is 1 to 5; X, Y are each hydrogen or together an oxy group, R (-A )a(-M )b(-A )c(-M )d(-A )e, and R (-A )a(-M )b(-A )c(-M )d(-A )e are mesogenic radicals. The compounds of the invention are suitable for use in liquid crystal mixtures.