Reactivity of a Polar Silene toward Terminal Alkynes: Preference for C−H Insertion over Cycloaddition

A variety of terminal alkynes were added to Mes2SiCHCH2 t-Bu, 4, a naturally polarized silene. Three different modes of reactivity were observed: addition across the acetylenic C−H bond to give silylacetylenes 6a−i and 12, cycloaddition to give silacyclobutenes 7 and 9, and ene-addition to give vin...

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Veröffentlicht in:Organometallics 2010-11, Vol.29 (22), p.5972-5981
Hauptverfasser: Milnes, Kaarina K, Pavelka, Laura C, Baines, Kim M
Format: Artikel
Sprache:eng
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