Optically active aromatic carboxylic acid derivatives and process for producing the same
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0289307A2
公开(公告)日:1988-11-02
Disclosed are optically active aromatic carboxylic acid derivatives represented by the formula (I):
(wherein R2 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; 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:
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.
本发明公开了由式(I)代表的具有光学活性的芳香族羧酸衍生物:
(其中 R2 代表具有 1 至 20 个碳原子的烷氧基烷基或具有 1 至 20 个碳原子的烷基,该烷基可被卤素原子取代;代表的数目为 1 或 2;m 代表的数目为 0 或 1;* 表示不对称碳原子)以及通过以下反应步骤生产此类衍生物的工艺:
以上述式(I)为代表的光学活性芳香族羧酸衍生物可用作液晶材料,也可用作制备药物、农药等的中间体。