申请人:Sumitomo Chemical Company, Limited
公开号:US05225605A1
公开(公告)日:1993-07-06
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.
化学式为[II]的拟除虫菊酮,##STR1##是通过在水性醇溶剂中,用锌反应化学式为[I]的环戊烯酮衍生物,##STR2##而制得。而化学式为[I]的环戊烯酮衍生物,是通过在钯催化剂、铜催化剂和三级胺的存在下,用乙烯卤代物反应化学式为[III]的丙炔基环戊烯酮衍生物,##STR3##而制得。这些过程可以轻松生产出化学式为[II]的拟除虫菊酮和化学式为[I]的中间化合物,以用于生产拟除虫菊酮。