The present invention relates to a process for preparing 5-amino-N-phenyl-1,2,4-triazole-3-sulfonamides of the general formula (I)
1
where
X is halogen (in particular fluorine, chlorine or bromine), cyano or nitro,
R is hydrogen or optionally halogen-substituted C
1
-C
4
-alkyl, and
n is 1 or 2,
characterized in that it comprises reacting 5-amino-3-chlorosulfonyl-1,2,4-triazole of the formula (II)
2
with substituted anilines of the general formula (III)
3
where
X, n and R are as defined above,
in the absence of a solvent.
本发明涉及一种制备通式(I)1中的5-
氨基-N-苯基-
1,2,4-三唑-3-磺酰胺的方法,其中X是卤素(特别是
氟、
氯或
溴)、
氰基或硝基,R是氢或可选的卤代C1-C4烷基,n为1或2,其特征在于在无溶剂的情况下将通式(II)2中的5-
氨基-3-
氯磺酰基-
1,2,4-三唑与通式(III)3中定义的X、n和R与上述定义相同的取代
苯胺反应。