Title:
ALKOXYTETRAZOL-1-YLBENZALDEHYDE COMPOUND AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/012267
Kind Code:
A1
Abstract:
A process for producing an alkoxytetrazol-1-ylbenzaldehyde compound represented by the general formula (2): (wherein A1 represents alkoxy and A2 represents hydrogen, alkyl, or fluoroalkyl), characterized by reacting a 1-(alkoxyphenyl)-1H-tetrazole compound represented by the general formula (1): (wherein A1 and A2 are the same as defined above) with hexamethylenetetramine in a sulfonic acid solvent and subsequently hydrolyzing the reaction product. Thus, an alkoxytetrazol-1-ylbenzaldehyde compound can be safely and efficiently produced by formylating a 1-(alkoxyphenyl)-1H-tetrazole compound.
Inventors:
HAGIYA KAZUTAKE (JP)
SATO YASUHIRO (JP)
SATO YASUHIRO (JP)
Application Number:
PCT/JP2004/010437
Publication Date:
February 10, 2005
Filing Date:
July 15, 2004
Export Citation:
Assignee:
TOYO KASEI KOGYO CO LTD (JP)
HAGIYA KAZUTAKE (JP)
SATO YASUHIRO (JP)
HAGIYA KAZUTAKE (JP)
SATO YASUHIRO (JP)
International Classes:
C07D257/04; (IPC1-7): C07D257/04
Domestic Patent References:
| WO2002006263A1 | 2002-01-24 |
Foreign References:
| JPH09505275A | 1997-05-27 | |||
| JPH11502810A | 1999-03-09 |
Other References:
SUZUKI Y, ET AL.: "Formylation of phenols with electron-withdrawing groups in strong acids. Synthesis of substituted salicylaldehydes", CHEMICAL & PHARMACEUTICAL BULLETIN, vol. 31, no. 5, 1983, pages 1751 - 1753, XP008028006
Attorney, Agent or Firm:
Saegusa, Eiji (Doshomachi, Chuo-ku,, Osaka-sh, Osaka, JP)
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