Hujin Zuo, Rui Huang, Qisong Zhang
Sep 1, 2015
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Influential Citations
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Journal
Research on Chemical Intermediates
Abstract
Reaction between 3,3′-dibromothiophene and sodium methylate/methanol in the presence of KI/CuO afforded 3-bromo-4-methoxythiophene as a major product. It was transformed into 4,4′-dimethoxy-3,3′-bithiophene by using Pd(OAc)2 as a catalyst and agarose as a ligand. The conditions of the reaction were mild with an acceptable yield of 20 %. The product was characterized by MS, 1H NMR, and its spectra of UV–Vis and cyclic voltammetry were given.Graphical Abstract4,4′-dimethoxy-3,3′-bithiophene was synthesized from 3-bromo-4-methyloxy thiophene in the homogeneous system formed by water and agarose.