Optically active aromatic carboxylic acid derivatives and process for producing the same

U.S. Patent Number: 5332675

Abstract: Disclosed are optically active aromatic carboxylic acid derivatives represented by the formula (I): ##STR1## (wherein R.sub.2 represents an alkoxyalkyl group having 1 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms, which alkyl group may be substituted with a halogen atom; l represents a number of 1 or 2; m represents a number of 0 or 1; and * indicates asymmetric carbon atom) and a process for producing such derivatives through the following reaction steps: ##STR2## A process for the hydrolysis of ester derivatives of (I) using esterase is described. The optically active aromatic carboxylic acid derivatives represented by the above-described formula (I) are useful as a liquid crystal material and can be also utilized as an intermediate for the preparation of pharmaceuticals, agricultural chemicals and the like.

Inventors: Minai; Masayoshi (Moriyama, JP), Higashii; Takayuki (Kishiwada, JP)

Assignee: Sumitomo Chemical Company, Limited (Osaka, JP)

Application Number: 07/920,159

Issued: 1994-07-26

Expired: 2006-07-26

Classes: 435/280 ; 560/55; 560/59; 560/66; 560/73

Field of search: 560/59,64,66 435/280

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