期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 137, 期 46, 页码 14598-14601出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.5b10357
关键词
-
资金
- NSF [CHE-1362294]
- Alfred P. Sloan Research Fellowship
A unique cooperative H-2 activation reaction by heterobimetallic (NHC)M'-MCp(CO)(2) complexes (NHC = N-heterocyclic carbene, M' = Cu or Ag, M = Fe or Ru) has been leveraged to develop a catalytic alkyne semi-hydrogenation transformation. The optimal AgRu catalyst gives high selectivity for converting alkynes to E-alkenes, a rare selectivity mode for reduction reactions with H-2. The transformation is tolerant of many reducible functional groups. Computational analysis of H-2 activation thermodynamics guided rational catalyst development. Bimetallic alkyne hydrogenation and alkene isomerization mechanisms are proposed.
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