Amide Formation in One Pot from Carboxylic Acids and Amines via Carboxyl and Sulfinyl Mixed Anhydrides
作者:Bartosz K. Zambroń、Srinivas R. Dubbaka、Dean Marković、Elena Moreno-Clavijo、Pierre Vogel
DOI:10.1021/ol401053y
日期:2013.5.17
An efficient method has been developed for the preparation of yet unknown acyclic mixedanhydrides of carboxylic and sulfinic acids. Sterically hindered 2-methylbut-3-ene-2-sulfinyl carboxylates add primary and secondary amines preferentially onto the carbonyl moieties realizing a new method for the one-pot preparation of carboxamides. It uses 1:1 mixtures of carboxylic acids and amines without a base