A phosphine-free Pd catalyst for the selective double carbonylation of aryl iodides
作者:Verónica de la Fuente、Cyril Godard、Ennio Zangrando、Carmen Claver、Sergio Castillón
DOI:10.1039/c2cc17124d
日期:——
The first phosphine-free Pd-catalysed double carbonylation of aryl iodides is reported as a general and practical method, giving excellent conversions and selectivities for a wide range of aryl iodides and amine nucleophiles under atmospheric CO pressure.
Coupling of Methyl Ketones and Primary or Secondary Amines Leading to α-Ketoamides
作者:Wei Wei、Ying Shao、Huayou Hu、Feng Zhang、Chao Zhang、Yuan Xu、Xiaobing Wan
DOI:10.1021/jo301117b
日期:2012.9.7
A metal-free oxidative coupling of methyl ketones and primary or secondary amines to α-ketoamides has been developed. Four intermediates, α-iodoketone, α-aminoketone, iminium intermediate, and α-hydroxy amine have been identified through a series of control experiments. The atom-economic methodology can be scaled-up, tolerates a variety of functional groups, and is operationally simple.