Improvement in olefin metathesis using a new generation of ruthenium catalyst bearing an imidazolylidene ligand: synthesis of heterocycles
A number of heterocycles have been prepared in very good yields using 1,3-dimesitylimidazol-2-ylidene ruthenium benzylidene 1. This catalyst displays increased activity for ring-closing metathesis of some hindered heterodienes which did not cyclize using the Grubbs catalyst 2. The scope of the olefin metathesis has been expanded.
Briot
A
Laboratoire de Synthese Bio-Organique, CNRS et Universite Louis Pasteur, Faculte de Pharmacie, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France.
Bujard
M
Gouverneur
V
Nolan
SP
Mioskowski
C