Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1992-06-26
1994-05-24
Lee, Mary C.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
534843, 25229968, C07C24508, C09K 1924
Patent
active
053149971
ABSTRACT:
An optically active azo compound is represented by the following general formula (I), ##STR1## where R is an alkyl group having from 1 to 20 carbon atoms, and R* is an optically active radical of an alkyl group or a halogen substituted alkyl group having from 1 to 10 carbon atoms. A liquid crystal composition contains this compound. A method for producing an optically active azo compound represented by the following general formula (I) has the step of reacting a phenol compound represented by the following general formula (II) with an optically active carboxylic acid represented by the following general formula (III) using a condensing agent at a room temperature. ##STR2##
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Kanemoto Akihiko
Shoshi Masayuki
Lee Mary C.
Powers Fiona T.
Ricoh & Company, Ltd.
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