ALPHA-BROMOACRYLAMIDO-BENZENE SULFONIC ACID COMPOUND, PROCESS FOR PRODUCING THE SAME AND USE AS RESIST PRINTING AGENT OF POLYAMIDE FIBERS

摘要

PURPOSE: An alpha-bromoacrylamido-benzene sulfonic acid compound capable of providing an excellent resist printing effect and their use as a resist printing agent of polyamide fibers are provided which are useful as a pattern design of various melange yarns and act as an effective accelerating agent in case of a basic dye. CONSTITUTION: The alpha-bromoacrylamido-benzene sulfonic acid compound of formula 1 having excellent dye exhaustion and excellent in dyeing uniformity is prepared in several steps; preparing a compound of formula 3 by reacting a compound of formula 2 and 2,3-dibromopropionyl chloride, preparing a compound of formula 4 by eliminating hydrogen bromide from the compound of formula 3 and preparing a compound of formula 1 by substituting a triazine group of the compound 5 for hydrogen of an amine group of the compound 4.