Title:
【発明の名称】光学活性アゾ化合物及びそれを含む液晶組成物
Document Type and Number:
Japanese Patent JP3081024
Kind Code:
B2
Abstract:
An optically active azo compound is represented by the following general formula (I), (I) 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.
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Inventors:
Masayuki Shoji
Akihiko Kanemoto
Akihiko Kanemoto
Application Number:
JP17122791A
Publication Date:
August 28, 2000
Filing Date:
July 11, 1991
Export Citation:
Assignee:
株式会社リコー
International Classes:
C09K19/54; C07C245/08; C09K19/24; C09K19/58; G02F1/13; (IPC1-7): C07C245/08; C09K19/54; G02F1/13
Domestic Patent References:
| JP5140065A | ||||
| JP59172580A |
Other References:
【文献】米国特許4032470(US,A)
【文献】米国特許3190860(US,A)
【文献】米国特許3190860(US,A)
Attorney, Agent or Firm:
Hidetake Komatsu (2 outside)