PROCESS FOR PRODUCING TETRAZOLE COMPOUND AND INTERMEDIATE THEREFOR

摘要

There are disclosed an industrially favorable process for producing a tetrazole compound of general formula (1): <CHEM> characterized in that a nitrile of general formula (2): R<1>CN is reacted with hydrazine or a salt thereof in the presence of a catalyst, followed by reaction with a nitrous acid compound of general formula (3): ANO2 or a nitrile of general formula (2) is reacted with hydrogen sulfide, followed by reaction with an alkyl halide of general formula (4): R<4>J with hydrazine or a salt thereof, and then with a nitrous acid compound of general formula (3); and an intermediate of general formula (5): R<1>C(=R<5>)R<6> which is useful for the production of the tetrazole compound (in which R<1> to R<6>, A and J in the above formulas are as defined in the specification).