containing heterocycles, primary or secondary amines, arylglyoxaldehydes, and anilines is reported. The key step involves a tandem sequence of N-1 addition of a heterocycle or an amine to preformed α-iminoketones, followed by an air- or oxygen-mediated oxidation to form α-oxo-acetamidines. The scope of the reaction is enticingly broad, and this novel methodology is applied toward the synthesis of various
Multiple Oxidative Dehydrogenative Functionalization of Arylacetaldehydes Using Molecular Oxygen as Oxidant Leading to 2-Oxo-acetamidines
作者:Chun Zhang、Liangren Zhang、Ning Jiao
DOI:10.1002/adsc.201100892
日期:2012.5.7
A novel copper‐catalyzed, multipleoxidativedehydrogenativefunctionalization of arylacetaldehydesleading to 2‐oxo‐acetamidine compounds has been developed. This transformation is highly efficient with dissociation of six hydrogens including two sp3 CH and one sp2 CH bond activations. This method not only provides an efficient approach to 2‐oxo‐acetamidine compounds, but also offers a valuable
Synthesis of 2-oxo-acetamidines via copper-catalyzed oxidative cross-coupling of α-amino ketone compounds with amines
作者:Pengjie Wang、Yi Xiong、Yiqun Qin、Jiajia Zhang、Niannian Yi、Jiannan Xiang、Wei Deng
DOI:10.1016/j.catcom.2019.105766
日期:2019.11
and efficient method for the synthesis of 2-oxo-acetamidines via copper-catalyzed oxidative cross-coupling of amines with α-amino ketone compounds was achieved. In this reaction, the C − N bond of α-amino ketone is broken and new C − N and CN bonds are constructed in one single transformation. This reaction system has a broad substrate scope and provides a facile pathway for the synthesis of 2-oxo-acetamidines