Reactions of alkynes with [RuCl (cyclopentadienyl)] complexes: the important first steps

B Dutta, B FE Curchod, P Campomanes…

Index: Dutta, Barnali; Curchod, Basile F. E.; Campomanes, Pablo; Solari, Euro; Scopelliti, Rosario; Rothlisberger, Ursula; Severin, Kay Chemistry - A European Journal, 2010 , vol. 16, # 28 p. 8400 - 8409

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Citation Number: 22

Abstract

Abstract Cyclopentadienyl–ruthenium half-sandwich complexes with η 2-bound alkyne ligands have been suggested as catalytic intermediates in the early stages of Ru-catalyzed reactions with alkynes. We show that electronically unsaturated complexes of the formula [RuCl (Cp^)(η 2-RC≡ CR′)] can be stabilized and crystallized by using the sterically demanding cyclopentadienyl ligand Cp^(Cp^= η 5-1-methoxy-2, 4-tert-butyl-3-neopentyl- ...