Rhodium(<scp>i</scp>)-catalyzed <i>N</i>-arylation of arylazocarboxylates: facile access to unsymmetrical <i>N</i>,<i>N</i>-diarylhydrazides
作者:Xiaofeng Rao、Wei-An Zhang、Ming-Hua Xu
DOI:10.1039/d3nj01022h
日期:——
A simple, efficient, and broad-scope rhodium(I)-catalyzed direct N-arylation of arylazocarboxylates with arylboronic acids has been developed, allowing access to a diverse range of unsymmetrical N,N-diarylhydrazides from readily available starting materials in high yields under extraordinary mild conditions. The reaction features easy operation, ambient temperature and low catalyst loading (as low
Formation of cinnoline derivatives by a gold(I)-catalyzed hydroarylation of N-propargyl-N′-arylhydrazines
作者:Igor Dias Jurberg、Fabien Gagosz
DOI:10.1016/j.jorganchem.2010.06.017
日期:2011.1
A study concerning the gold(I)-catalyzed hydroarylation of N-propargyl-N'-arylhydrazinecarboxylic acid methyl esters is described. The use of the gold complex [XPhosAu(NCCH(3))SbF(6)] as the catalyst in refluxing nitromethane allows the generally rapid and efficient synthesis of a range of functionalized 4-exo-methylene-1,2-dihydrocinnolines. (C) 2010 Elsevier B.V. All rights reserved.