Alkoxy-(tetrazol-1-yl)benzaldehyde compound and process for...

Details Alkoxy-(tetrazol-1-yl)benzaldehyde compound and process for... Alkoxy-(tetrazol-1-yl)benzaldehyde compound and process for...

C - Chemistry, Metallurgy

07

D

C07D 257/04 (2006.01)

Patent

CA 2531573

The present invention relates to a process for producing an alkoxy-(tetrazol-1-yl)benzaldehyde compound represented by Formula (2): (see formula 2) wherein A1 is an alkoxy group, and A2 is a hydrogen atom, alkyl group or fluorine-substituted alkyl group, the process comprising reacting a 1-(alkoxyphenyl)-1H-tetrazole compound represented by Formula (1): (see formula 1) wherein A1 and A2 are as defined above, with hexamethylenetetramine in a sulfonic acid solvent, followed by hydrolysis. According to the present invention, an alkoxy--(tetrazol-1-yl)benzaldehyde compound can be safely and efficiently produced by formylating a 1-(alkoxyphenyl) -1H--tetrazole compound.

L'invention concerne un procédé permettant de produire un composé alkoxytetrazol-1-ylbenzaldehyde représenté par la formule (2) : (dans cette formule, A?1¿ représente alkoxy et A?2¿ représente hydrogène, alkyle ou fluoroalkyle). Le procédé décrit dans cette invention se caractérise par la réaction d'un composé 1-(alkoxyphényl)-1H-tetrazole représenté par la formule générale (1) : (dans cette formule, A?1¿ et A?2¿ ont la même signification que dans la formule générale (2)), avec un hexaméthylènetétramine dans un solvant d'acide sulfonique, puis l'hydrolyse du produit de réaction. Ainsi, un composé alkoxytetrazol-1-ylbenzaldehyde peut être produit efficacement et en toute sécurité par formulation d'un composé 1-(alkoxyphényl)-1H-tetrazole.

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