Patent ID: 6248887
Filing Date: 2001-06-19
Classification: C07D,D21H

Abstract:
A process for the preparation of stilbene-disulphonic acids containing bis-alkoxy-triazinyl-amino, wherein a stilbene-disulphonic acid containing bis-chloro-triazinyl-amino, is reacted with a C.sub.1 -C.sub.4 -monoalkanol, at least 10 mol of C.sub.1 -C.sub.4 -monoalkanol being employed per mol of the stilbene-disulphonic acid containing bis-chloro-triazinyl-amino, whereby the C.sub.1 -C.sub.4 -monoalkanol is employed together with water and the water content of the reaction mixture is 10-80% by weight based on the total weight of the reaction mixture.