Title:
INDUSTRIAL MANUFACTURING METHOD FOR DAMASCENONE
Document Type and Number:
WIPO Patent Application WO/2016/155487
Kind Code:
A1
Abstract:
Provided is an industrial manufacturing method for a damascenone, the method being characterised in that: ionone is reacted with a peroxide to produce epoxy compound A, epoxy compound A is reduced to intermediate product B under the effect of hydrazine, and the damascenone is obtained via oxidation of intermediate product B. The present invention optimises the production process and the synthetic route, there are few side reactions during production, post-treatment is convenient, the production conditions are mild, and the present invention is suitable for industrial production modes.
Inventors:
WANG ZHIXUN (CN)
Application Number:
PCT/CN2016/076320
Publication Date:
October 06, 2016
Filing Date:
March 14, 2016
Export Citation:
Assignee:
WANG ZHIXUN (CN)
International Classes:
C07C45/29; C07C49/557
Other References:
SARANDESES, L.A. ET AL.: "A New Synthesis of a-and beta-Damascones from the Ionones", THE JOURNAL OF ORGANIC CHEMISTRY, vol. 57, no. 9, 1 April 1992 (1992-04-01), XP000265850, ISSN: 0022-3263
DUPUY, C. ET AL.: "New Developments of the Wharton Transposition", TETRAHEDRON, vol. 45, no. 11, 31 December 1989 (1989-12-31), XP055315403, ISSN: 0040-4020
DAVALIAN, D. ET AL.: "Synthesis of 7, 8-Epoxy-7, 8-dihydroretinoids", THE JOURNAL OF ORGANIC CHEMISTRY, vol. 44, no. 24, 1 November 1979 (1979-11-01), pages 4460, XP055315404, ISSN: 0022-3263
DUPUY, C. ET AL.: "New Developments of the Wharton Transposition", TETRAHEDRON, vol. 45, no. 11, 31 December 1989 (1989-12-31), XP055315403, ISSN: 0040-4020
DAVALIAN, D. ET AL.: "Synthesis of 7, 8-Epoxy-7, 8-dihydroretinoids", THE JOURNAL OF ORGANIC CHEMISTRY, vol. 44, no. 24, 1 November 1979 (1979-11-01), pages 4460, XP055315404, ISSN: 0022-3263
Attorney, Agent or Firm:
SHANGHAI CPTO INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
上海精晟知识产权代理有限公司 (CN)
上海精晟知识产权代理有限公司 (CN)
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