申请人:TOYO KASEI KOGYO COMPANY LIMITED
公开号:EP1650198A1
公开(公告)日:2006-04-26
The present invention relates to a process for producing an alkoxy-(tetrazol-1-yl)benzaldehyde compound represented by 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):
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.
本发明涉及一种生产由式(2)表示的烷氧基(四唑-1-基)苯甲醛化合物的工艺:
其中 A1 是烷氧基,A2 是氢原子、烷基或氟取代的烷基,该工艺包括使式 (1) 所代表的 1-(烷氧基苯基)-1H-四唑化合物反应:
其中 A1 和 A2 如上定义,与六亚甲基四胺在磺酸溶剂中反应,然后水解。根据本发明,通过对 1-(烷氧基苯基)-1H-四唑化合物进行甲酰化,可以安全有效地制得烷氧基-(四唑-1-基)苯甲醛化合物。