Patent ID: 6054613
Filing Date: 2000-04-25
Classification: C07C

Abstract:
A process for the preparation of a sulphonamide of formula:RSO.sub.2 NR.sup.1 R.sup.2wherein R represents C.sub.1 -C.sub.10 alkyl; andR.sup.1 and R.sup.2 independently represent hydrogen, C.sub.1 -C.sub.10 alkyl or C.sub.6 -C.sub.10 aryl; which comprises reacting the corresponding alkane- or arenesulphonyl halide of formula:RSO.sub.2 Halwherein Hal represents halogen; with the corresponding compound of formula:NHR.sup.1 R R.sup.2in an aqueous solvent and extracting the sulphonamide from the resulting mixture into a polar organic solvent.