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Title:
3-FORMYL-5-TRIFLUOROMETHYLBENZONITRILE DERIVATIVE AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/090289
Kind Code:
A1
Abstract:
A process for producing 3-formyl-5-trifluoromethylbenzonitrile which comprises a first step in which a 3-dihalogenomethylbenzotrifluoride represented by the general formula [1]: [Chemical formula 12] [1] [wherein X and Y represent the same or different halogeno (fluorine, chlorine, bromine, or iodine)] is brominated to obtain a 1-bromo-3-dihalogenomethyl-5-trifluoromethylbenzene represented by the general formula [2]: [Chemical formula 13] [2] [wherein X and Y represent the same or different halogeno (fluorine, chlorine, bromine, or iodine)], a second step in which the 1-bromo-3-dihalogenomethyl-5-trifluoromethylbenzene is hydrolyzed to obtain 1-bromo-3-formyl-5-trifluoromethylbenzene, and a third step in which the 1-bromo-3-formyl-5-trifluoromethylbenzene is cyanated with a cyano compound to obtain 3-formyl-5-trifluoromethylbenzonitrile.

Inventors:
SAEGUSA HIROSHI
NARIZUKA SATORU
Application Number:
PCT/JP2005/002399
Publication Date:
September 29, 2005
Filing Date:
February 17, 2005
Export Citation:
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Assignee:
CENTRAL GLASS CO LTD (JP)
SAEGUSA HIROSHI
NARIZUKA SATORU
International Classes:
C07B61/00; C07C17/12; C07C25/13; C07C253/14; C07C253/30; C07C255/50; C07C255/53; C07C255/56; (IPC1-7): C07C253/14; C07C25/13; C07C253/30; C07C255/50; C07C255/53; C07C255/56
Domestic Patent References:
WO2004020393A12004-03-11
WO2002096849A12002-12-05
Foreign References:
JP2003221376A2003-08-05
Attorney, Agent or Firm:
Hashimoto, Takeshi c/o Shiga, Patent Office (Ekisaikai Bldg. 1-29, Akashi-ch, Chuo-ku Tokyo 44, JP)
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