Role of σ,π-Digold(I) Alkyne Complexes in Reactions of Enynes
作者:Sofia Ferrer、Antonio M. Echavarren
DOI:10.1021/acs.organomet.7b00668
日期:2018.3.12
Gold(I) acetylide and σ,π-digold(I) alkyne complexes derived from one prototypical 1,6-enyne and from 7-ethynyl-1,3,5-cycloheptatriene have been prepared and structurally characterized. Their possible role in gold(I)-catalyzed cycloisomerizations has been studied by experiment and by DFT calculations. Gold(I) acetylides are totally unproductive complexes in the absence of Brønsted acids. Similarly