Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2011-08-30
2011-08-30
Harlan, Robert D. (Department: 1762)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S167000, C548S101000, C548S103000, C556S136000, C556S021000, C556S023000, C526S170000, C526S172000
Reexamination Certificate
active
08008224
ABSTRACT:
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 at at least one ortho 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.
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Office Action issued in counterpart Chinese Pat. App. No. 200680051426.3, State Intellectual Property Office of People's Republic of China, mailed Mar. 3, 2011.
Berlin Jacob
Grubbs Robert H.
Schrodi Yann
Stewart Ian C.
California Institute of Technology
Costellia Jeffrey L.
Harlan Robert D.
MATERIA, Inc.
Nixon & Peabody LLP
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