Stilbene compound, intermediate for producing the stilbene compo

Details Stilbene compound, intermediate for producing the stilbene compo Stilbene compound, intermediate for producing the stilbene compo

1993-02-09

1994-05-10

Wu, Shean

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229964, 25229965, 25229966, C09K 1920, C09K 1912

Patent

active

053105036

ABSTRACT:
An optically active stilbene compound of formula (I): ##STR1## wherein R is an alkoxy group with 20 or less carbon atoms; n is an integer of 1 or 2; and R* is an optically active group, a substituted benzylphosphonate compound of formula (II) serving as an intermediate for preparing the above active stilbene compound, ##STR2## wherein X represents ##STR3## R' is an alkyl group having 1 to 5 carbon atoms, or an unsubstituted or substituted aryl group; and R* is the same as in formula (I), a method of producing the optically active stilbene compound of formula (I), and a liquid crystal composition containing the optically active stilbene compound of formula (I) are disclosed.

REFERENCES:
patent: 5227512 (1993-07-01), Shoshi
CA 97(17):144507 W, 1982.

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