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Direct α-Arylation of Ethers through the Combination of Photoredox-Mediated C-H Functionalization and the Minisci Reaction
被引:399
|作者:
Jin, Jian
[1
]
MacMillan, David W. C.
[1
]
机构:
[1] Princeton Univ, Merck Ctr Catalysis, Princeton, NJ 08544 USA
关键词:
alkylation;
C-H functionalization;
ethers;
heterocycles;
photoredox catalysis;
FREE-RADICAL REACTIONS;
NUCLEOPHILIC CHARACTER;
ALKYL RADICALS;
HETEROAROMATIC BASES;
RATE CONSTANTS;
SINGLE-LAYER;
LIGHT;
CATALYSIS;
PHOTOCHEMISTRY;
PHOTOPHYSICS;
D O I:
10.1002/anie.201410432
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The direct alpha-arylation of cyclic and acyclic ethers with heteroarenes has been accomplished through the design of a photoredox-mediated C-H functionalization pathway. Transiently generated alpha-oxyalkyl radicals, produced from a variety of widely available ethers through hydrogen atom transfer (HAT), were coupled with a range of electron-deficient heteroarenes in a Minisci-type mechanism. This mild, visible-light- driven protocol allows direct access to medicinal pharmacophores of broad utility using feedstock substrates and a commercial photocatalyst.
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页码:1565 / 1569
页数:5
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