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Palladium-Catalyzed Oxidative Intermolecular Difunctionalization of Terminal Alkenes with Organostannanes and Molecular Oxygen
被引:169
|作者:
Urkalan, Kaveri Balan
[1
]
Sigman, Matthew S.
[1
]
机构:
[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA
基金:
美国国家卫生研究院;
关键词:
cross-coupling;
homogeneous catalysis;
molecular oxygen;
palladium;
reaction mechanisms;
AEROBIC ALCOHOL OXIDATION;
CYCLIZATION-ANION CAPTURE;
N-HETEROCYCLIC CARBENES;
ARYLBORONIC ACIDS;
PD(II) CATALYSIS;
HECK REACTIONS;
BOND FORMATION;
BASE-FREE;
OLEFINS;
COMPLEXES;
D O I:
10.1002/anie.200900218
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A cationic palladium complex catalyzes the title transformations, which are thought to proceed via a π-allyl or π-benzyl intermediate. The regioselectivity of the reaction (1,2- or 1,1-difunctionalization) depends on the type of terminal double bond (conjugated or nonconjugated) in the substrate (see scheme) and appears to be controlled by the relative rates of β-hydride elimination and transmetalation. DMA=dimethylacetamide, Tf=triflyl. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
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页码:3146 / 3149
页数:4
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