Some insights into the gold-catalysed A 3 -coupling reaction
作者:Gregory A. Price、Alan K. Brisdon、Simon Randall、Edward Lewis、Daniel M. Whittaker、Robin G. Pritchard、Chris A. Muryn、Kevin R. Flower、Peter Quayle
DOI:10.1016/j.jorganchem.2017.06.019
日期:2017.10
application to A3-coupling reactions is presented. Gold(III) complexes were found to be particularly effective catalysts for the coupling in a range of solvents, however no asymmetric induction was obtained when using chiral gold complexes and the rate of product formation was found to be similar even when using different ligand systems. In-situ NMR analysis of these reactions indicates that decomposition
Synthesis, Characterization, and Catalytic Activity of Chiral NHC Platinum(II) Pyridine Dihalide Complexes
作者:Romain Pertschi、Delphine Hatey、Patrick Pale、Pierre de Frémont、Aurélien Blanc
DOI:10.1021/acs.organomet.9b00850
日期:2020.3.23
A series of platinum(II) dihalide pyridine complexes bearing chiral C2-symmetric N-heterocyclic carbene (NHC) ligands [Pt(NHC*)(Py)(Hal)2] was synthesized in a one-pot procedure and characterized by NMR spectroscopy and single crystal X-ray diffraction (SC-XRD). The complexes were tested for the asymmetric cycloisomerization of enynol into bicyclo[3.1.0]hexanone and feature an excellent catalytic activity
Solvent effects in gold-catalysed A3-coupling reactions
作者:Gregory A. Price、Alan K. Brisdon、Kevin R. Flower、Robin G. Pritchard、Peter Quayle
DOI:10.1016/j.tetlet.2013.10.141
日期:2014.1
Gold-catalysed A(3)-reactions proceed efficiently when conducted in 2,2,2-trifluoroethanol as solvent. The rates of these reactions are accelerated considerably when conducted in a microwave reactor. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.