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
A Palladium(II)-Catalyzed Synthesis of α-Ketoamides<i>via</i>Chemoselective Aroyl Addition to Cyanamides
作者:Srimanta Guin、Saroj Kumar Rout、Anupal Gogoi、Wajid Ali、Bhisma K. Patel
DOI:10.1002/adsc.201400011
日期:2014.8.11
AbstractAn acyl moiety generated from α‐oxocarboxylic acids via decarboxylation undergoes a palladium‐catalyzed chemoselective insertion into organic cyanamides to afford N‐monosubstituted α‐ketoamides.magnified image