| 发明名称 |
METHOD FOR THE RESOLUTION OF RACEMIC 2-(P-DIFLUOROMETHOXY PHENYL)-3-METHYLBUTYRIC ACID |
| 摘要 |
A method for the resolution of racemic 2-(p-difluoromethoxyphenyl)-3-methylbutyric acid into its optically active components. The method utilizes salts prepared by reacting the racemic acid with optically active amines and recovers the dextrorotatory isomer. The present invention also relates to insecticidal pyrethroids prepared from (+)-2-(p-difluoromethoxyphenyl)-3-methylbutyric acid. |
| 申请公布号 |
ZA8306192(B) |
申请公布日期 |
1984.04.25 |
| 申请号 |
ZA19830006192 |
申请日期 |
1983.08.22 |
| 申请人 |
AMERICAN CYANAMID CO |
发明人 |
VENKATARAMAN KAMESWARAN;SIDDENS JACK KENNETH;SIVARAMAN RAGHU |
| 分类号 |
C07C69/734;C07B31/00;C07B57/00;C07C41/00;C07C41/01;C07C41/09;C07C43/20;C07C43/225;C07C43/23;C07C51/487;C07C59/64;C07C67/00;C07C67/30;C07C201/12;C07C205/37;C07C253/00;C07C253/30;C07C255/37 |
主分类号 |
C07C69/734 |
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