N-ALKYL-N(AMINOPHENYLSULFONYL)-AMINOALKYLPHOSPHONIC ACIDS

摘要

This invention relates to novel N-alkyl-N-(amino-phenylsulfonyl)-aminoalkylphosphonic acids and to processes for their preparation. These compounds are useful as intermediates, especially for the manufacture of dyes containing phosphonic acid groups in their structure. Such dyes are reactive with cellulosic fibers and fabrics in the presence of carbodiimides at elevated temperatures.