Novel eta(3)-vinylcarbene complexes derived from ruthenium-based olefin metathesis catalysts

Authors
Trnka, TM Day, MW Grubbs, RH
Citation
Tm. Trnka et al., Novel eta(3)-vinylcarbene complexes derived from ruthenium-based olefin metathesis catalysts, ORGANOMETAL, 20(18), 2001, pp. 3845-3847
Citations number
37
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
20
Issue
18
Year of publication
2001
Pages
3845 - 3847
Database
ISI
SICI code
0276-7333(20010903)20:18<3845:NECDFR>2.0.ZU;2-B
Abstract
Electron-rich, disubstituted alkynes react with (H(2)IMes)(PCy3)(Cl)(2)Ru=C HPh (1; H(2)IMes = 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene) to form pho sphine-free eta (3)-vinylcarbene complexes. An X-ray diffraction study on ( H(2)IMes)(Cl)(2)Ru[eta (3)-(CHPh)(CPh)(CPh)] (2) confirms the unusual struc ture. These complexes are relevant to the mechanisms of olefin metathesis a nd alkyne polymerization.