Title:
アルドール反応のための触媒系
Document Type and Number:
Japanese Patent JP4268806
Kind Code:
B2
Abstract:
The invention relates to a catalytic system for use in a process for the preparation, in a single step, of enones by an aldol condensation of a ketone, such as a gem-dimethyl cyclohexylethanone or gem-dimethyl cyclohexenylethanone derivative, with an aldehyde in the presence of a novel catalytic system and a co-ingredient, such as a carboxylic acid anhydride or an anhydrous salt, and without the pre-formation of an enolate. The catalytic system is a metal complex, such as a [(Cl)n(alkoxy)4-nTi] or [(Cl)n(alkoxy)4-nZr] complex where n is 1 to 3.
Inventors:
Dennis Jacoby
Application Number:
JP2002591430A
Publication Date:
May 27, 2009
Filing Date:
May 21, 2002
Export Citation:
Assignee:
FIRMENICH SA
International Classes:
B01J31/22; C07C45/74; B01J31/00; B01J31/02; B01J31/04; B01J31/12; B01J31/26; B01J31/30; C07B61/00; C07C45/45; C07C49/203; C07C49/21; C07C49/557; C07C49/647; C07C67/52; B01J31/38
Domestic Patent References:
| JP61145205A | ||||
| JP56052041B1 | ||||
| JP41001770B1 | ||||
| JP60072840A | ||||
| JP4279536A | ||||
| JP6009495A | ||||
| JP7505406A | ||||
| JP63225329A | ||||
| JP2002069026A | ||||
| JP2002284730A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard