Copper-Catalyzed para-Selective C–H Amination of Electron-Rich Arenes
摘要:
A one-pot two-step method for para-selective C-H amination of carbocyclic arenes comprises the in situ formation of unsymmetrical diaryl-lambda(3)-iodanes followed by their Cu(I)-catalyzed reaction with a range of N-unprotected amines.
Synthesis and structural characterization of palladium(II) thiosemicarbazone complex: application to the Buchwald–Hartwig amination reaction
作者:Rupesh Narayana Prabhu、Rengan Ramesh
DOI:10.1016/j.tetlet.2012.12.070
日期:2013.2
A simple route to synthesize mononuclear palladium(II) thiosemicarbazone complex has been described. Elemental analysis, spectral methods and single crystal X-ray diffraction analysis were used to confirm the composition of the complex. The new complex acts as an active homogeneous catalyst for the Buchwald-Hartwig amination reaction of a wide range of aryl and heteroaryl halides (bromides and chlorides), including activating, neutral and deactivating substrates, with various secondary amines under optimized conditions. (C) 2012 Elsevier Ltd. All rights reserved.