Optically active substance and liquid crystal composition compri

Details Optically active substance and liquid crystal composition compri Optically active substance and liquid crystal composition compri

1990-03-14

1992-06-23

Lovering, Richard D.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 549273, C09K 1934, C09K 1952, C07D30900

Patent

active

051240696

ABSTRACT:
Disclosed is an optically active substance represented by the formula: ##STR1## wherein m is an integer of 1 to 14, Y is ##STR2## R is --C.sub.n H.sub.2n+1, --OC.sub.n H.sub.2n+1, --OCOC.sub.n H.sub.2n+1 or --COOC.sub.n H.sub.2n+1 (in which n is an integer of 1 to 18), each of the asterisked carbon atoms is an asymmetric carbon atom, X a single bond, --CO.sub.2 --, or --OCO--, and A.sub.1 and A.sub.2 is hydrogen, fluorine, chlorine, bromine, cyano or methoxy.

REFERENCES:
patent: 4818431 (1989-04-01), Eidenschink
patent: 5045228 (1991-09-01), Nakauchi et al.

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