Verfahren zur Herstellung von N-(3-Amino-4-fluor-phenyl)-sulfonsäureamiden, N-(3-Amino-4-fluor-phenyl)-carbonsäureamiden und N-(3-Amino-4-fluor-phenyl)-carbamaten

摘要

The invention relates to a method for producing N-(3-amino-4-fluorophenyl)- sulphonamides, N-(3-amino-4-fluorophenyl) carboxylic acid amides and N-(3-amino-4-fluorophenyl) carbamates of general formula (I), wherein A stands for SO2, CO or CO2 and R stands for optionally substituted alkyl or aryl, whereby 1-fluoro-2,4 diamino-benzol of formula (II) with sulphonyl chlorides, carboxylic acid chlorides or chloroformic acid esters of general formula (III), wherein A and R have the meaning cited above, is made to react with an acid acceptor and in the presence of a diluting agent at temperatures ranging between -20 DEG C and +100 DEG C.