Title:
PROCESS FOR PRODUCING 1-SUBSTITUTED 4-CARBAMOYL-1,2,4-TRIAZOL-5-ONE DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/2004/048346
Kind Code:
A1
Abstract:
A process for producing a 1-substituted 4-carbamoyl-1,2,4-triazol-5-one derivative represented by the following general formula (I): (I) (wherein X represents halogeno or lower alkyl; Y represents halogeno; R represents lower alkyl; and n and m each is an integer of 0 to 5), characterized by reacting a 1-substituted 1,2,4-triazol-5-one derivative with a carbamoyl chloride compound in an organic solvent and/or water in the presence of a dehydrochlorinating agent and a phase-transfer catalyst.
Inventors:
OKITA HIROYUKI (JP)
KIDO TSUNEHIRO (JP)
KIDO TSUNEHIRO (JP)
Application Number:
PCT/JP2003/015189
Publication Date:
June 10, 2004
Filing Date:
November 27, 2003
Export Citation:
Assignee:
HOKKO CHEM IND CO (JP)
OKITA HIROYUKI (JP)
KIDO TSUNEHIRO (JP)
OKITA HIROYUKI (JP)
KIDO TSUNEHIRO (JP)
International Classes:
C07B61/00; C07D249/12; (IPC1-7): C07D249/12
Domestic Patent References:
| WO1998038176A1 | 1998-09-03 | |||
| WO2000010984A1 | 2000-03-02 |
Foreign References:
| JPS57136574A | 1982-08-23 |
Attorney, Agent or Firm:
Suzuki, Shunichiro (Gotanda Yamazaki Bldg. 6F 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokyo, JP)
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