Title:
チアゾール化合物の製造法
Document Type and Number:
Japanese Patent JP4839660
Kind Code:
B2
Abstract:
A process for producing a thiazole compound of the formula (3): wherein X1 is a hydrogen atom or a halogen atom, which comprises reacting a compound of the formula (1): wherein X1 is as defined above, and X2 represents a halogen atom, with ammonia and formaldehyde to obtain a hexahydrotriazine compound of the formula (2): wherein X1 is as defined above, and reacting the resulting hexahydrotriazine compound with hydroxylamine under acidic conditions. According to this process, the thiazole compound of the formula (3) can be industrially advantageously produced using inexpensive ammonia with suppressing the formation of a byproduct of the formula (4): wherein X1 is as defined above.
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Inventors:
Kazuyuki Tanaka
Naoyuki Takano
Shinzo Seko
Naoyuki Takano
Shinzo Seko
Application Number:
JP2005110702A
Publication Date:
December 21, 2011
Filing Date:
April 07, 2005
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
C07D277/28; C07D277/20; C07D277/32
Domestic Patent References:
| JP59036688A |
Foreign References:
| SU798102A | ||||
| EP0794180A1 |
Other References:
Hartough HD et al,J Am Chem Soc,1948年,Vol.70,p.4013-7
Chrisey LA et al,HETEROCYCLES,1989年,Vol.29, No.6,p.1179-83
Chrisey LA et al,HETEROCYCLES,1989年,Vol.29, No.6,p.1179-83
Attorney, Agent or Firm:
Toru Nakayama