Pyrethrolone of the formula [II], ##STR1## is produced by reacting a cyclopentenolone derivative of the formula [I], ##STR2## with zinc in an aqueous alcohol solvent. And the cyclopentenolone derivative of the formula [I] is produced by reacting a propargylcyclopentenolone derivative of the formula [III], ##STR3## with vinyl halide in the presence of a palladium catalyst, a copper catalyst and a tertiary amine. These processes permit easy production of pyrethrolone of the formula [II] and an intermediate compound of the formula [I] for the production of the pyrethrolone.
公式[II]的拟
除虫菊酯[Pyrethrolone], ##STR1## 是通过在
水性醇溶剂中,将公式[I]的
环戊烯酮衍
生物, ##STR2## 与
锌反应而制得。而公式[I]的
环戊烯酮衍
生物则是在
钯催化剂、
铜催化剂和三级胺的存在下,将公式[III]的
丙炔基
环戊烯酮衍
生物, ##STR3## 与
乙烯卤代物反应而制得。这些过程可轻松生产公式[II]的拟
除虫菊酯和用于制备拟
除虫菊酯的中间化合物,即公式[I]。