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Title:
PROCESS FOR PRODUCING 2-HALOGENOBENZAMIDE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2005/063703
Kind Code:
A1
Abstract:
A novel process for producing a 2-halogenobenzamide compound useful as a raw material or active ingredient for medicines and agricultural chemicals. The process, which is for producing a 2-halogenobenzamide compound represented by the general formula (I): (wherein R1, R2, R3, R4, and R6 may be the same or different and each represents hydrogen or C1-6 alkyl; R5 represents C1-6 alkyl; k is 1 or 2; Y1, Y2, Y3, and Y4 may be the same or different and each represents hydrogen, halogeno, etc.; and X represents chlorine, bromine, or iodine), is characterized by reacting an benzamide compound with a halogenating agent in the presence of a palladium catalyst to obtain a substituted benzamide compound and then reacting the resultant substituted benzamide compound with an oxidizing agent after or without isolating the substituted benzamide compound.

Inventors:
ABE NOBORU (JP)
KODAMA HIROKI (JP)
YOSHIURA AKIHIKO (JP)
Application Number:
PCT/JP2004/019234
Publication Date:
July 14, 2005
Filing Date:
December 22, 2004
Export Citation:
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Assignee:
NIHON NOHYAKU CO LTD (JP)
ABE NOBORU (JP)
KODAMA HIROKI (JP)
YOSHIURA AKIHIKO (JP)
International Classes:
C07C315/04; C07C317/28; (IPC1-7): C07C315/02; C07C315/04; C07C317/28
Foreign References:
JP2003012638A2003-01-15
JP2002338516A2002-11-27
JPH11240857A1999-09-07
JP2001131141A2001-05-15
JP2001335563A2001-12-04
JP2003034673A2003-02-07
JP2003012638A2003-01-15
JP2002338516A2002-11-27
JP2002326989A2002-11-15
EP1389612A12004-02-18
EP1389613A12004-02-18
EP1277726A12003-01-22
JP2001163854A2001-06-19
JP2002105046A2002-04-10
Other References:
See also references of EP 1698619A4
J. MED. CHEM., vol. 10, 1967, pages 982
ORGANIC SYNTHESES COLL., vol. 2, pages 528
J. ORG. CHEM., vol. 38, 1973, pages 2557
Attorney, Agent or Firm:
Asamura, Kiyoshi (New Ohtemachi Bldg. 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, JP)
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