5-Furan-2yl[1,3,4]oxadiazole-2-thiol, 5-Furan-2yl-4H [1,2,4] triazole-3-thiol and Their Thiol-Thione Tautomerism
作者:M. Koparır、A. Çetin、A. Cansız
DOI:10.3390/10020475
日期:——
5-Furan-2-yl[1,3,4]oxadiazole-2-thiol (Ia) and 5-furan-2-yl-4H-[1,2,4]-triazole-3-thiol (Ib) were synthesized from furan-2-carboxylic acid hydrazide. Mannich basesand methyl derivatives were then prepared. The structures of the synthesized compoundswere confirmed by elemental analyses, IR and 1H-NMR spectra. Their thiol-thione tautomericequilibrium is described.
5-呋喃-2-基[1,3,4]噁二唑-2-硫醇(Ia)和5-呋喃-2-基-4H-[1,2,4]-三唑-3-硫醇(Ib)是由呋喃-2-羧酸肼合成的。随后制备了曼尼希碱和甲基衍生物。合成化合物的结构通过元素分析、红外光谱和1H-NMR谱进行确认。描述了它们的硫醇-硫酮互变平衡。