Copper-catalyzed three-component reaction of <i>N</i>-heteroaryl aldehydes, nitriles, and water
作者:Hanyang Bao、Bingwei Zhou、Hongwei Jin、Yunkui Liu
DOI:10.1039/c9ob00599d
日期:——
copper-catalyzed radical-triggered three-component reaction of N-heteroaryl aldehydes, nitriles, and water. Mechanistic studies indicate that the reaction may undergo a radical-triggered Ritter-type reaction in which water serves as the oxygen source for the formation of the C–O bond. The reaction has advantages such as a broad substrate scope for the N-heteroaryl aldehydes, atom economy, and simple operation.
Regioselectivite de la reduction de tropones de la quinoxaline
作者:A. Turck、A. Loupy、G. Quéguiner
DOI:10.1016/0040-4020(82)80191-9
日期:1982.1
The reduction of quinoxalinotropones by some borohydrides is studied. We calculate the electronic structures, ab initio STO 3G method, of the various possible complexes and compare to the α-enones. It is demonstrated that the borohydride reduction of these tropones is under orbital frontier control and that the important element is carbonyl complexation by the cation.