title: Oxidative cycloaddition of 1,1,3,3-tetramethyldisiloxane to alkynes catalyzed by supported gold nanoparticles.
abstract: Gold 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, tolerates a variety of functional groups, and can be performed in several solvents.
authors.affiliation: Department of Chemistry, University of Crete, Voutes 71003 Iraklion, Greece.
authors.forename: Ioannis N
authors.initials: IN
authors.lastname: Lykakis
authors.forename: Androniki
authors.initials: A
authors.lastname: Psyllaki
authors.forename: Manolis
authors.initials: M
authors.lastname: Stratakis