935476-38-3Relevant academic research and scientific papers
Ruthenium-catalyzed ring-closing metathesis to form tetrasubstituted olefins
Berlin, Jacob M.,Campbell, Katie,Ritter, Tobias,Funk, Timothy W.,Chlenov, Anatoly,Grubbs, Robert H.
, p. 1339 - 1342 (2008/01/03)
Figure presented Increased efficiency for ring-closing metathesis to form tetrasubstituted olefins using N-heterocyclic carbene ligated ruthenium catalysts was achieved by reducing the size of the substituants at the ortho positions of the N-bound aryl ri
ORGANOMETALLIC RUTHENIUM COMPLEXES AND RELATED METHODS FOR THE PREPARATION OF TETRA-SUBSTITUTED AND OTHER HINDERED OLEFINS
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Page/Page column 29-30, (2010/11/27)
The invention relates to ruthenium alkylidene complexes having an N-heterocyclic carbene ligand comprising a 5-membered heterocyclic ring having a carbenic carbon atom and at least one nitrogen atom contained within the 5-membered heterocyclic ring, wherein the nitrogen atom is directly attached to the carbenic carbon atom and is substituted by a phenyl ring, and wherein the phenyl ring has a hydrogen at either or both ortho positions and is substituted and at least one orthq or meta position. The invention also relates to an olefin metathesis reactions and particularly to the preparation of tetra-substituted cyclic olefins via a ring-closing metathesis.
