A New Versatile One-Pot Synthesis of Functionalized Thioamides From Grignards, Carbon Disulfide and Amines
作者:Alan R. Katritzky、Jean-Luc Moutou、Zhijun Yang
DOI:10.1055/s-1995-4144
日期:1995.12
The one-pot successive reactions of Grignard reagents with carbon disulfide and amines mediated by 1-trifluoromethylsulfonylbenzotriazole or triflic anhydride, provide and attractive and general route to thioamides. A wide variety of amines (primary alkyl, arylalkyl, secondary alkyl, cyclic amines, aniline, N-substituted anilines, heterocyclic amidines, amino alcohols, amino ethers, amino acetals, amino ketones, amino esters, amino amides (peptides), aminoalkenes, and diamines) and Grignard (primary alkyl, arylalkyl, aryl, secondary alkyl and tertiary alkyl) can be used, and thioamides are generally formed in good to moderate yields.
由1-三氟甲磺酰苯并三唑或三氟甲磺酸酐介导的Grignard试剂与二硫化碳和胺的一锅连续反应提供了一条吸引人的、通用的硫酰胺合成途径。广泛种类的胺(一级烷基、芳基烷基、二级烷基、环状胺、苯胺、N-取代苯胺、杂环脒、氨基醇、氨基醚、氨基缩醛、氨基酮、氨基酯、氨基酰胺(肽)、氨基烯烃和二胺)以及Grignard试剂(一级烷基、芳基烷基、芳基、二级烷基和三级烷基)均可使用,并且通常以良好至中等的产率形成硫酰胺。