Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Reexamination Certificate
2007-07-31
2007-07-31
Nazario-Gonzalez, Porfirio (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
C546S002000, C548S103000, C502S155000, C502S167000, C585S509000, C568S061000, C568S319000, C568S671000
Reexamination Certificate
active
11508334
ABSTRACT:
The present invention relates to catalysts of transition metal complexes of N-heterocyclic carbenes, their methods of preparation and their use in chemical synthesis. The synthesis, ease-of-use, and activity of the compounds of the present invention are substantial improvements over in situ catalyst generation. Further, the transition metal complexes of N-heterocyclic carbenes of the present invention may be used as precatalysts in metal-catalyzed cross-coupling reactions.
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Kantchev Assam (Eric) B.
O'Brien Christopher J.
Organ Michael G.
Nazario-Gonzalez Porfirio
Rothwell Figg Ernst & Manbeck P.C.
Total Synthesis, Ltd.
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