Title:
How to manufacture 1, 3, and 3* Trimethyl *2* (3* methyl pent *2* Yen *4* inyl) cyclo hex *1* Yen
Document Type and Number:
Japanese Patent JP5936287
Kind Code:
B2
Abstract:
The present invention relates to an improved process for the production of 1,3,3-tri-methyl-2-(3-methylpent-2-en-4-ynyl)cyclohex-1-ene, highly enriched in the Z-isomer, and the use of such compounds in organic syntheses, especially in processes forming intermediates (building blocks) the synthesis of vitamin A or β-carotene or other carotenoids, e.g. canthaxanthin, astaxanthin or zeaxanthin.
Inventors:
Bonras, Warner
Netchel, thomas
Schutz, Yang
Ustenberg, Betina
Netchel, thomas
Schutz, Yang
Ustenberg, Betina
Application Number:
JP2014516276A
Publication Date:
June 22, 2016
Filing Date:
June 14, 2012
Export Citation:
Assignee:
DSM IP ASSETS B.V.
International Classes:
C07C403/02
Domestic Patent References:
| JP39012314B1 | ||||
| JP2014521598A |
Other References:
Lopez, Susana; Rodriguez, Jesus; Rey, Jose Garcia; de Lera, Angel R.,Structural Effects Affecting the Thermal Electrocyclic Ring Closure of Vinylallenes to Alkylidenecyclobutenes,Journal of the American Chemical Society ,1996年,118(8),1881-91
Ammal, Salai Cheettu; Yoshikai, Naohiko; Inada, Youichi;,Synergistic Dimetallic Effects in Propargylic Substitution Reaction Catalyzed by Thiolate-Bridged Diruthenium Complex,Journal of the American Chemical Society ,2005年,127(26),9428-9438
Nishibayashi, Yoshiaki; Shinoda, Akira; Miyake, Yoshihiro;,Ruthenium-catalyzed propargylic reduction of propargylic alcohols with silanes,Angewandte Chemie, International Edition ,2006年,45(29),4835-4839
Ammal, Salai Cheettu; Yoshikai, Naohiko; Inada, Youichi;,Synergistic Dimetallic Effects in Propargylic Substitution Reaction Catalyzed by Thiolate-Bridged Diruthenium Complex,Journal of the American Chemical Society ,2005年,127(26),9428-9438
Nishibayashi, Yoshiaki; Shinoda, Akira; Miyake, Yoshihiro;,Ruthenium-catalyzed propargylic reduction of propargylic alcohols with silanes,Angewandte Chemie, International Edition ,2006年,45(29),4835-4839
Attorney, Agent or Firm:
Ikeda adult
Yoshinori Shimizu
Masakazu Noda
Kazuhiro Yamaguchi
Yoshinori Shimizu
Masakazu Noda
Kazuhiro Yamaguchi
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