An iron-TEMPO-catalyzed (TEMPO = 2,2,6,6-tetramethyl-1-piperidinyloxy), aerobic process was developed to synthesize α-ketoamides. This reaction proceeds through a dominoalcoholoxidation/oxidativecross-dehydrogenativecoupling sequence, uses 2-hydroxyacetophenones and amines as the starting materials, and takes place under molecular oxygen, which makes the transformation highly efficient, practical
Metal free synthesis of α-keto amides from 2-hydroxy acetophenones through domino alcohol oxidation–oxidative amidation reaction
作者:Surya Srinivas Kotha、Govindasamy Sekar
DOI:10.1016/j.tetlet.2015.09.053
日期:2015.11
An efficient method for the synthesis of α-ketoamides using 2-iodoxybenzoic acid (IBX) promoted dominoalcoholoxidation and oxidativeamidation reaction sequence between 2-oxoalcohols and amines under metal-free conditions is developed. In this protocol, IBX is used as an oxidizing agent to synthesize the α-ketoamides, which makes this methodology highly efficient, practical, and environmentally