Synthesis of(E)-2-(3,4,5-trimethoxystyryl) -5-amino-benzenesulfonic acid

A new compound was synthesized from 2-methyl-5-nitrobenzenesulfonic acid,3,4,5-trimethoxybenzaldehyde via multiple steps,including condensation and catalytic reduction reaction.The E pattern of the new compound has been determined by mass spectrometry,IR spectra,1HNMR and 13CNMR spectroscopy.