Oxidative Cycloaddition of 1,1,3,3-Tetramethyldisiloxane to Alkynes Catalyzed by Supported Gold Nanoparticles
作者:Ioannis N. Lykakis、Androniki Psyllaki、Manolis Stratakis
DOI:10.1021/ja2045502
日期:2011.7.13
nanoparticles supported on TiO(2) (0.1-1% mol) catalyze at roomtemperature and at extremely mild conditions the unprecedented oxidative cycloaddition of 1,1,3,3-tetramethyldisiloxane to alkynes, forming substituted 2,5-dihydro-1,2,5-oxadisiloles, with concomitant evolution of hydrogen gas. For the majority of the substrates, the yields are exceptional (up to 99%). The reaction proceeds at room temperature