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A General Solution for Unstable Boronic Acids: Slow-Release Cross-Coupling from Air-Stable MIDA Boronates
被引:468
作者:
Knapp, David M.
[1
]
Gillis, Eric P.
[1
]
Burke, Martin D.
[1
]
机构:
[1] Univ Illinois, Roger Adams Lab, Dept Chem, Urbana, IL 61801 USA
基金:
美国国家科学基金会;
关键词:
ARYL HALIDES;
CYCLOPROPYLBORONIC ACID;
SUZUKI;
PALLADIUM;
EFFICIENT;
ESTERS;
HETEROARYL;
COMPLEXES;
CHLORIDES;
DERIVATIZATION;
D O I:
10.1021/ja901416p
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Many boronic acids, including 2-heterocyclic, vinyl, and cyclopropyl derivatives, are inherently unstable, which can limit their benchtop storage and/or efficient cross-coupling. We herein report the first general solution to this problem: in situ slow release of unstable boronic acids from the corresponding air-stable MIDA boronates. This remarkably general approach has transformed all three classes of these unstable boronic acids into shelf-stable and highly effective building blocks for cross-coupling with a wide range of aryl and heteroaryl chlorides.
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页码:6961 / +
页数:4
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