2,3-difluorophenol derivatives

Details 2,3-difluorophenol derivatives 2,3-difluorophenol derivatives

1989-03-09

1990-01-30

Gron, Teddy S.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 25229965, 25229967, 350350R, 350350S, 560 59, 560 60, 560 64, 560 65, 560 73, 560102, 560104, 560106, 560109, G02F 113, C09K 1930, C09K 1920, C07C 69773

Patent

active

048972169

ABSTRACT:
2,3-Difluorophenol derivatives of the formula ##STR1## wherein R.sup.1 and R.sup.2, in each case independently of one another, are an alkyl group having 1 to 15 C atoms in which, in addition, one or two nonadjacent CH.sub.2 groups may be replaced by --O--, --CO--, --CH.dbd.CH-- and/or --C.tbd.C--;

REFERENCES:
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patent: 4256656 (1981-03-01), Beguim et al.
patent: 4279770 (1981-07-01), Imukai et al.
patent: 4368135 (1983-01-01), Osman
patent: 4602851 (1986-07-01), Jenner et al.
patent: 4637897 (1987-01-01), Kelly et al.
patent: 4710315 (1987-12-01), Schab et al.
patent: 4744918 (1988-05-01), Heppke et al.
patent: 4808333 (1989-02-01), Huynh-Ba et al.
Osman, M. A., Mol. Cryst., Lir Gryst., vol. 82, (Lett.), pp. 295-302, (1982).

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