| 发明名称 |
Process for preparing cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acid |
| 摘要 |
Lactones of the formula <IMAGE> wherein R is hydrogen or a CX3 group, and each X is a chlorine or bromine atom, are converted to the known cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acids or lower alkyl esters, from which pyrethroid insecticides are obtained.
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| 申请公布号 |
US4254282(A) |
申请公布日期 |
1981.03.03 |
| 申请号 |
US19790049826 |
申请日期 |
1979.06.18 |
| 申请人 |
FMC CORPORATION |
发明人 |
KONDO, KIYOSHI;TAKASHIMA, TOSHIYUKI;TUNEMOTO, DAIEI |
| 分类号 |
C07C29/09;C07C29/38;C07C51/09;C07D307/93;(IPC1-7):C07C51/09 |
主分类号 |
C07C29/09 |
| 代理机构 |
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