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Double Dehydrogenation of Primary Amines to Nitriles by a Ruthenium Complex Featuring Pyrazole Functionality
被引:94
作者:
Dutta, Indranil
[1
,2
]
Yadav, Sudhir
[1
,2
]
Sarbajna, Abir
[1
,2
]
De, Subhabrata
[1
,2
]
Hoelscher, Markus
[3
]
Leitner, Walter
[3
,4
]
Bera, Jitendra K.
[1
,2
]
机构:
[1] Indian Inst Technol Kanpur, Dept Chem, Kanpur 208016, Uttar Pradesh, India
[2] Indian Inst Technol Kanpur, Ctr Environm Sci & Engn, Kanpur 208016, Uttar Pradesh, India
[3] Rhein Westfal TH Aachen, Inst Tech & Makromol Chem, Worringerweg 2, D-52074 Aachen, Germany
[4] Max Planck Inst Chem Energy Convers, Stiftstr 34-36, D-45470 Mulheim, Germany
关键词:
METAL-LIGAND COOPERATION;
CATALYTIC INTRAMOLECULAR HYDROAMINATION;
N-HETEROCYCLIC CARBENE;
PCP PINCER COMPLEXES;
ACCEPTORLESS DEHYDROGENATION;
SECONDARY-AMINES;
BOND ACTIVATION;
AROMATIZATION-DEAROMATIZATION;
IRIDIUM COMPLEXES;
AEROBIC OXIDATION;
D O I:
10.1021/jacs.8b05009
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A ruthenium(II) complex bearing a naphthyridine-functionalized pyrazole ligand catalyzes oxidant free and acceptorless selective double dehydrogenation of primary amines to nitriles at moderate temperature. The role of the proton-responsive entity on the ligand scaffold is demonstrated by control experiments, including the use of a N-methylated pyrazole analogue. DFT calculations reveal intricate hydride and proton transfers to achieve the overall elimination of 2 equiv of H-2.
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页码:8662 / 8666
页数:5
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