| 摘要 |
Esters of chrysanthemic acid with 3-coumaranol opt. substd. in the 5-posn. by halogen, lower alkyl or alkoxy, are insecticides which are biodegradable and of low toxicity to young animals. The esters may be prepd. by reacting chrysanthemic acid halide with the appropriate coumaranol in the presence of a tert. amine. |
