Title:
PROCESS FOR PRODUCING Α-TRIFLUOROMETHYL-Α,Β-UNSATURATED ESTER
Document Type and Number:
WIPO Patent Application WO/2010/035747
Kind Code:
A1
Abstract:
An α-trifluoromethyl-α,β-unsaturated ester can be produced by reacting an α-trifluoromethyl-α-hydroxy ester with sulfuryl fluoride (SO2F2) in the presence of an organic base. In the raw material substrate, it is more preferred that one of the substituents at position-β be a hydrogen atom, the other be an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an aromatic cyclic group or a substituted aromatic cyclic group, and the ester group be an alkylester. The raw material substrate is readily available, and therefore a desired reaction can proceed satisfactorily. The organic base is preferably 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) or 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). A desired reaction can proceed more satisfactorily by using the organic base.
Inventors:
ISHII, Akihiro (())
石井 章央 (())
YASUMOTO, Manabu (())
安本 学 (())
YAMAZAKI, Takako (())
山▲崎▼ たか子 (())
石井 章央 (())
YASUMOTO, Manabu (())
安本 学 (())
YAMAZAKI, Takako (())
山▲崎▼ たか子 (())
Application Number:
JP2009/066527
Publication Date:
April 01, 2010
Filing Date:
September 24, 2009
Export Citation:
Assignee:
CENTRAL GLASS COMPANY, LIMITED (5253, Oaza Okiube Ube-sh, Yamaguchi 01, 〒7550001, JP)
セントラル硝子株式会社 (〒01 山口県宇部市大字沖宇部５２５３番地 Yamaguchi, 〒7550001, JP)
ISHII, Akihiro (())
石井 章央 (())
YASUMOTO, Manabu (())
安本 学 (())
YAMAZAKI, Takako (())
セントラル硝子株式会社 (〒01 山口県宇部市大字沖宇部５２５３番地 Yamaguchi, 〒7550001, JP)
ISHII, Akihiro (())
石井 章央 (())
YASUMOTO, Manabu (())
安本 学 (())
YAMAZAKI, Takako (())
International Classes:
C07C67/317; C07C69/65
Attorney, Agent or Firm:
HASHIMOTO, Takeshi et al. (Ekisaikai Bldg. 1-29, Akashi-cho, Chuo-k, Tokyo 44, 〒1040044, JP)
Download PDF: