Title of article :
Development of a well-defined silica-supported tungstenocarbyne complex as efficient heterogeneous catalyst for alkyne metathesis
Author/Authors :
Nicolas Merle، نويسنده , , Mostafa Taoufik، نويسنده , , Morad Nayer، نويسنده , , Anne Baudouin، نويسنده , , Erwan Le Roux، نويسنده , , Régis M. Gauvin، نويسنده , , Frédéric Lefebvre، نويسنده , , Jean Thivolle-Cazat، نويسنده , , Jean-Marie Basset، نويسنده ,
Issue Information :
دوفصلنامه با شماره پیاپی سال 2008
Abstract :
The interaction of [W(triple bond; length of mdashC–tBu)(CH2–tBu)(OAr)2] (Ar = 2,6-iPr2C6H3) (1), with the hydroxyl groups of a silica dehydroxylated at 700 °C leads to [(triple bond; length of mdashSiO)W(OAr)2(triple bond; length of mdashC–tBu)] (2) which was characterized by IR, solid-state NMR and mass balance analysis. This well-defined surface species is an efficient catalyst for the metathesis of pent-2-yne.
Keywords :
Alkyne metathesis , Heterogeneous catalysis , Metallocarbyne , Surface organometallic chemistry , solid-state NMR
Journal title :
Journal of Organometallic Chemistry
Journal title :
Journal of Organometallic Chemistry
