Patent ID: 6878843
Filing Date: 2005-04-12
Classification: C07C

Abstract:
1. A process for the preparation of a compound of formula (I) wherein R m is 1, 2 or 3, n is an integer from 1 to 30, and R R R p corresponds to the number of —[NR by reaction of a compound of formula (II) wherein R is C with a compound of formula (III) wherein R 3 and n are as defined above, wherein the reaction takes place at a practically neutral acid value (pH) and in the presence of a catalyst, wherein the catalyst is an alkali metal salt of an organic carboxylic acid or is a mixture of said salts, which salt or salts are dissolved or suspended in the reaction mixture, wherein (i) the alkali metal salt is formed from an alkali metal cation and an anion of an organic carboxylic acid and (ii) the organic carboxylic acid is at least partially volatile under the reaction conditions applied.