Sol-Gel Immobilized N-Heterocyclic Carbene Gold Complex as a Recyclable Catalyst for the Rearrangement of Allylic Esters and the Cycloisomerization of γ-Alkynoic Acids
作者:Meritxell Ferré、Xavier Cattoën、Michel Wong Chi Man、Roser Pleixats
DOI:10.1002/cctc.201600632
日期:2016.9.7
The synthesis of a bis‐silylated (NHC)AuCl (NHC=N‐heterocycliccarbene) complex and the formation of a hybrid silica material by the sol–gel process by cogelification with tetraethylorthosilicate under fluoride catalysis are described. This material was characterized by using 29Si solid‐state NMR spectroscopy, N2 sorption measurements, electron microscopy, and elemental analysis. It was tested as a