发明名称 |
Process for the preparation of a mixture of an optionally substituted cinnamic acid ester and an optionally substituted beta -alkoxy- beta -phenyl-propionic acid ester, and a process for the preparation of optionally substituted cinnamic acid |
摘要 |
A mixture of an optionally substituted cinnamic acid ester and an optionally substituted beta -alkoxy- beta -phenyl-propionic acid ester is prepared by reacting an optionally substituted benzaldehyde with an optionally substituted acetic acid ester and an alcoholate in the presence of an alcohol. The reaction can be carried out in a wide temperature range of from -20 DEG C. to +150 DEG C. The ester mixture can be hydrolyzed under acid or alkaline conditions to give optionally substituted cinnamic acid.
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申请公布号 |
US4618698(A) |
申请公布日期 |
1986.10.21 |
申请号 |
US19850743533 |
申请日期 |
1985.06.11 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
BEITZKE, BERNHARD |
分类号 |
C07C27/00;C07C27/02;C07C51/00;C07C57/44;C07C67/00;C07C67/343;C07C69/618;C07C69/734;(IPC1-7):C07C69/76 |
主分类号 |
C07C27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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