Certain 1,2-dithiolium salts react with primary amines in alcoholic solution to provide 1-aminopropene-3-thiones, which can be oxidized by iodine to form isothiazolium salts. These react with sulfur in pyridine to form isothiazole-3-thiones, which react with methyl iodide to form 3-methylthioisothiazolium iodides.
Substituted secondary β-enaminothioketones of general type R1CSCR2=CHNHR3 react in acetic acid yielding the title compounds. The structure of these molecules was confirmed by 1H and 13C NMR spectroscopy and in one case by means of X-ray crystallographic investigations.
一般类型为 R1CSCR2=CHNHR3 的取代仲δ-烯氨基硫酮在乙酸中发生反应,生成标题化合物。这些分子的结构通过 1H 和 13C NMR 光谱以及一种情况下的 X 射线晶体学研究得到了证实。