| 发明名称 |
Method for racemization of chrysanthemic acid or its ester |
| 摘要 |
Racemization of optically active, particularly the (-)-form of chrysanthemic acid or its ester of the formula: <IMAGE> wherein R is, for example, hydrogen or an alkyl group, is effected by contacting it with boron tribromide or aluminum tribromide in the presence of an azo compound. This racemization procedure is useful from a commerical point of view.
|
| 申请公布号 |
US4723035(A) |
申请公布日期 |
1988.02.02 |
| 申请号 |
US19870010416 |
申请日期 |
1987.02.03 |
| 申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
SUZUKAMO, GOHFU;FUKAO, MASAMI |
| 分类号 |
C07B55/00;B01J31/00;B01J31/26;C07B31/00;C07B61/00;C07C51/00;C07C51/353;C07C51/487;C07C61/37;C07C67/00;C07C69/743;(IPC1-7):C07B55/00 |
主分类号 |
C07B55/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
