Bismuth(III) nitrate pentahydrate: a convenient and selective reagent for conversion of thiocarbonyls to their carbonyl compounds
作者:Iraj Mohammadpoor-Baltork、Mohammad Mehdi Khodaei、Kobra Nikoofar
DOI:10.1016/s0040-4039(02)02516-9
日期:2003.1
A variety of thioamides and thioureas are rapidly transformed to their oxo derivatives with Bi(NO3)3·5H2O in excellent yields. However, thiono esters and thioketones are converted to their corresponding carbonyl compounds in only poor yields. Bi(NO3)3·5H2O is relatively non-toxic, insensitive to air and inexpensive. These features coupled with the selective deprotection of thioamides and thioureas
各种硫代酰胺和硫脲可通过Bi(NO 3)3 ·5H 2 O迅速转化为它们的oxo衍生物,收率很高。然而,硫代酸酯和硫代酮仅以低收率转化为它们相应的羰基化合物。Bi(NO 3)3 ·5H 2 O相对无毒,对空气不敏感且价格便宜。这些特征与在硫代酸酯和硫代酮的存在下硫代酰胺和硫脲的选择性脱保护相结合,使得该方法成为现有的脱硫羰基化合物脱保护途径的有吸引力的替代方法。