Supported Au Nanoparticles-Catalyzed Regioselective Dehydrogenative Disilylation of Allenes by Dihydrosilane |
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| Authors: | Dr Marios Kidonakis Dr Vasiliki Kotzabasaki Dr Eleni Vasilikogiannaki Prof Dr Manolis Stratakis |
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| Institution: | Department of Chemistry, University of Crete, Voutes, 71003 Heraklion, Greece |
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| Abstract: | Supported Au nanoparticles on TiO2 catalyze the unprecedented dehydrogenative disilylation of monosubstituted and 1,1-disubstituted allenes by Et2SiH2 exclusively on the terminal double bond in a stereoselective manner. Treatment of the disilylation products with H2O, in a one-pot operation also catalyzed by Au/TiO2, leads to 3-alkylidene-1,2,5-oxadisilolanes, an unknown class of heterocyclic compounds, which are excellent scaffolds for the stereoselective synthesis of alkenes under Hiyama-type cross-coupling conditions. |
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| Keywords: | allenes Au nanoparticles catalysis disilylation Hiyama coupling |
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