公开(公告)号：DE3718174A1

公开(公告)日：1988-12-15

申请号：DE3718174

申请日：1987-05-29

Applicant: HOECHST AG

Inventor： SCHEROWSKY GUENTHER PROF DR ,  GAY JUERGEN ,  DUEBAL HANS-ROLF DR ,  ESCHER CLAUS DR ,  HEMMERLING WOLFGANG DR ,  MUELLER INGRID DR ,  OHLENDORF DIETER DR ,  WINGEN RAINER DR

IPC: C07D301/30 ,  C07D303/48 ,  C07D405/06 ,  C07D405/12 ,  C07D407/12 ,  C07D409/12 ,  C09K19/58 ,  G02F1/139 ,  G02F1/361 ,  G02F1/37 ,  C07D405/14 ,  C07D417/14 ,  C07D409/14 ,  G02F1/13 ,  G02F1/137 ,  G09F9/35

Abstract: Optically active oxirane-2-carboxylic esters with a mesogenic moiety are suitable for use as dopants in liquid crystal mixtures. They lead to liquid-crystalline ferroelectric phases having short response times and to electroclinic phases having large electroclinic coefficients. A further advantage is that they induce a helix of very small pitch, so that they are also suitable for helix compensation in LC mixtures.