Arylsilanes: Application to Gold-Catalyzed Oxyarylation of Alkenes
作者:Liam T. Ball、Michael Green、Guy C. Lloyd-Jones、Christopher A. Russell
DOI:10.1021/ol1019162
日期:2010.11.5
Arylsilanes are efficient reagents for the gold-catalyzed oxyarylation of alkenes (21 examples, up to 85% isolated yield). Using commercially available Ph3PAuCl and readily prepared, benign arylsilanes, these two- and three-component reactions proceed smoothly in air. The oxidant, Selectfluor, not only facilitates entry to the Au(I/III) manifold but also provides a fluoride anion for silane activation, thereby avoiding the need for addition of a stoichiometric base.
Gold-Catalyzed Three-Component Coupling: Oxidative Oxyarylation of Alkenes
作者:Asa D. Melhado、William E. Brenzovich、Aaron D. Lackner、F. Dean Toste
DOI:10.1021/ja1034123
日期:2010.7.7
The three-component coupling of terminal alkenes with arylboronic acids and oxygen nucleophiles is described. The reaction employs a binuclear gold(I) bromide as a catalyst and Selectfluor reagent as the stoichiometric oxidant. Alcohols, carboxylic acids, and water can be employed as oxygen nucleophiles, thus providing an efficient entry into B-aryl ethers, esters, and alcohols from alkenes.