EP 0988286 A1 20000329 - 2-FLUORO-3-(1-FLUORO-ALKYL)-PYRIDINE-6-YL DERIVATIVES AND THE USE THEREOF IN LIQUID CRYSTAL MIXTURES

Title (en)

2-FLUORO-3-(1-FLUORO-ALKYL)-PYRIDINE-6-YL DERIVATIVES AND THE USE THEREOF IN LIQUID CRYSTAL MIXTURES

Title (de)

2-FLUOR-3-(1-FLUOR-ALKYL)-PYRIDIN-6-YL-DERIVATE UND IHRE VERWENDUNG IN FLÜSSIGKRISTALLINEN MISCHUNGEN

Title (fr)

DERIVES DE 2-FLUORO-3-(1-FLUORO-ALKYLE)-PYRIDINE-6-YLE ET LEUR UTILISATION DANS DES MELANGES A CRISTAUX LIQUIDES

Publication

EP 0988286 A1 20000329 (DE)

Application

EP 98928240 A 19980511

Priority

DE 19723855 A 19970606
EP 9802740 W 19980511

Abstract (en)

[origin: DE19723855A1] The invention relates to a 2-fluoro-3-(1-fluoro-alkyl)-pyridine-6-yl derivative of formula (I) R<1>(-A<1>-M<1>)a(-A<2>-M<2>)b-B-R<2> wherein the symbols and indices have the following meaning: group B is (a); wherein Q is F or H; R<1> (-A<1>-M<1>)a(-A<2>-M<2>)b is a mesogene radical and R<2> is an alkyl group for example. The compounds of formula (I) are particularly suitable as constituents of ferroelectric liquid crystal mixtures, especially for displays which operate in tau V(min)- mode.

IPC 1-7

C07D 213/61; C07D 405/12; C07F 7/08; C09K 19/32

IPC 8 full level

C07D 213/61 (2006.01); C07D 405/10 (2006.01); C07D 405/12 (2006.01); C07F 7/10 (2006.01); C09K 19/34 (2006.01)

CPC (source: EP)

C07D 213/61 (2013.01); C07D 405/12 (2013.01); C09K 19/3444 (2013.01)

Citation (search report)

See references of WO 9855458A1

Designated contracting state (EPC)

DOCDB simple family (publication)

DE 19723855 A1 19981210; EP 0988286 A1 20000329; JP 2002511072 A 20020409; WO 9855458 A1 19981210

DOCDB simple family (application)

DE 19723855 A 19970606; EP 9802740 W 19980511; EP 98928240 A 19980511; JP 50137499 A 19980511