2,2'-difluoro-4-alkoxy-4'-hydroxydiphenyls and their derivatives

Details 2,2'-difluoro-4-alkoxy-4'-hydroxydiphenyls and their derivatives 2,2'-difluoro-4-alkoxy-4'-hydroxydiphenyls and their derivatives

1988-09-15

1990-01-23

Gron, Teddy S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

25229901, 2522995, 25229962, 25229963, 25229965, 25229966, 568642, C07C 4323, C09K 1912

Patent

active

048959863

ABSTRACT:
The invention relates to novel compounds usable as liquid crystals in liquid crystal display devices utilizing the electrically controlled birefringence effect.
These compounds comply with formula: ##STR1## in which R.sup.1 represents an alkoxy or alkyl radical with 1 to 12 carbon atoms and Z represents a single bond or a radical chosen from among: ##STR2## provided that R.sup.1 represents an alkyl radical when Z represents a single bond and R.sup.2 represents an alkyl radical with 1 to 12 carbon atoms.
They can be obtained by reacting an acid chloride of formula R.sup.1 --z--COCl with a 2,2'-difluoro-4-alkoxy-4'-hydroxydiphenyl of formula: ##STR3##

REFERENCES:
patent: 3947375 (1976-03-01), Gray et al.
patent: 4029594 (1977-06-01), Gavrilovic et al.
patent: 4073742 (1978-02-01), Erdmann et al.
patent: 4216109 (1980-08-01), Mizukuchi
patent: 4368135 (1983-01-01), Osman
patent: 4400293 (1983-08-01), Romer et al.
patent: 4415470 (1983-11-01), Eidenschink et al.
patent: 4419264 (1983-12-01), Eidenschink et al.
patent: 4490305 (1984-12-01), Eidenschink et al.
patent: 4542230 (1985-09-01), Gray et al.
patent: 4594465 (1986-06-01), Chan et al.
patent: 4602851 (1986-07-01), Jenner et al.
patent: 4695131 (1987-09-01), Balkwill et al.
patent: 4696549 (1987-09-01), Chan et al.
patent: 4737313 (1988-04-01), Saito et al.
patent: 4808333 (1989-02-01), Huynh-Ba et al.

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