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Document Type and Number:
Japanese Patent JP3057816
Kind Code:
Pyrethrolone of the formula [II], is produced by reacting a cyclopentenolone derivative of the formula [I], 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], 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.

松尾 憲忠
高垣 東平
Application Number:
Publication Date:
July 04, 2000
Filing Date:
July 01, 1991
Export Citation:
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International Classes:
B01J31/30; C07B61/00; C07C45/62; C07C45/68; C07C49/707; C07C49/743; (IPC1-7): C07C49/743; B01J31/30; C07C45/62; C07C45/68
Other References:
L.Crombie,S.H.Harper,and F.C.Newman,”Experiments on the synthesis of the pyrethrins.XI.Synthesis of cis−pyrethrolone and pyrethrin I.cis−Penta−2,4−dienyl system by selective hydrogenation.”J.Chem.Soc.,Great Britain,London,1956,pp.3963−3971
Attorney, Agent or Firm:
諸石 光▲ひろ▼ (外1名)

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