Title:
【発明の名称】ピレスロロンおよびその製造中間体の製造法
Document Type and Number:
Japanese Patent JP3057816
Kind Code:
B2
Abstract:
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.
Inventors:
Tohei Takagaki
Noritada Matsuo
Noritada Matsuo
Application Number:
JP16047191A
Publication Date:
July 04, 2000
Filing Date:
July 01, 1991
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
B01J31/30; C07B61/00; C07C45/62; C07C45/68; C07C49/707; C07C49/743; (IPC1-7): C07C49/743; B01J31/30; C07C45/62; C07C45/68
Domestic Patent References:
| JP314541A |
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:
Mitsuhiro Moroishi (1 person outside)