2-Carbomethoxy-3-Oxo Tetrahydrothiophene置于磺酰氯,三乙胺体系中,用82%的收率获得产物3-羟基-2-噻吩甲酸甲酯 参考文献:Aromatization Of Dihydrothiophenes. Thiophenesaccharin: A Sweet Surprise 标题:Aromatization Of Dihydrothiophenes. Thiophenesaccharin: A Sweet Surprise 摘要: DOI:10.1021/jo01292A012