Synthesis and characterization of a new intermediate for producing vinylsulfone-type reactive dyes

摘要

A new intermediate for producing vinylsulfone-type reactive dyes was designed and synthesized. Two 4-step synthetic routes to the dye intermediate afforded an overall yield of 47 and 82 %, respectively. The structures of the intermediate and related compounds were characterized by H-1 NMR, C-13 NMR, IR, and mass spectrum.