Alkenylcarbene Ruthenium Arene Complexes as Initiators of Alkene Metathesis: an Enyne Creates a Catalyst that Promotes its Selective Transformation

Autores: Ricardo Castarlenas, Matthieu Eckert y Pierre H. Dixneuf Ref. revista: Angewandte Chemie International Edition, 44, 2576-2579, (2005)

[RuCl(arene)(PCy3)]OTf with allyl or propyl propargyl ethers gives alkenylcarbene derivatives by a metallo-retro-ene reaction. The latter species are efficient initiators for catalytic ring-closing metathesis of allyl propargyl ethers into alkenylcycloalkenes and of dienes into cyclic alkenes