期刊
CHEMCATCHEM
卷 12, 期 23, 页码 5912-5918出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.202001158
关键词
manganese; alkene hydrogenation; metal-ligand cooperation; hydride complexes; P; N-donor ligand
Hydrogenation of substituted styrenes and unactivated aliphatic alkenes by molecular hydrogen has been achieved using a Mn catalyst with a non-pincer, picolylphosphine ligand. This is the second reported example of alkene hydrogenation catalyzed by a Mn complex. Mechanistic studies showed that a Mn hydride formed by H-2 activation in the presence of a base is the catalytically active species. Based on experimental and DFT studies, H-2 splitting is proposed to occur via a metal-ligand cooperative pathway involving deprotonation of the CH2 arm of the ligand, leading to pyridine dearomatization.
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