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 room temperature 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
负载在 TiO(2) (0.1-1% mol) 上的金纳米粒子在室温和极其温和的条件下催化 1,1,3,3-四甲基二硅氧烷前所未有的氧化环加成到炔烃,形成取代的 2,5-dihydro-1 ,2,5-oxadisiloles,伴随着氢气的释放。对于大多数基材,产率非常出色(高达 99%)。该反应在室温下进行,可耐受多种官能团,并可在多种溶剂中进行。