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1. (WO1999005097) LIQUID CRYSTAL PROPENE OR PROPENYL NITRILE DERIVATIVES

Pub. No.:    WO/1999/005097    International Application No.:    PCT/EP1998/004366
Publication Date: Fri Feb 05 00:59:59 CET 1999 International Filing Date: Wed Jul 15 01:59:59 CEST 1998
IPC: C07D 213/57
C07D 239/26
C07D 319/06
C09K 19/12
C09K 19/20
C09K 19/30
C09K 19/34
C09K 19/42
C09K 19/44
Applicants: MERCK PATENT GMBH
REIFFENRATH, Volker
HIRSCHMANN, Harald
Inventors: REIFFENRATH, Volker
HIRSCHMANN, Harald
Title: LIQUID CRYSTAL PROPENE OR PROPENYL NITRILE DERIVATIVES
Abstract:
The invention relates to acetylene derivatives of formula (I), wherein R, A?1, A2, Z1, Z2, Z3, L1, L2, L3¿, Y, m and n have the meanings given in Claim 1. The inventive acetylene derivatives are suitable for use as constituents of liquid crystal media.