Palladium-Catalyzed Enantioselective Intermolecular Coupling of Phenols and Allylic Alcohols.

Palladium-Catalyzed Enantioselective Intermolecular Coupling of Phenols and Allylic Alcohols.
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DOI:
10.1021/jacs.6b11486
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发表时间:
2016-12-14
影响因子:
15
通讯作者:
Sigman MS
Sigman MS
中科院分区:
化学1区
文献类型:
--
作者:
Race NJ;Schwalm CS;Nakamuro T;Sigman MS

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An enantioselective intermolecular coupling of oxygen nucleophiles and allylic alcohols to give β-aryloxycarbonyl compounds is disclosed using a chiral pyridine oxazoline-ligated palladium catalyst under mild conditions. As opposed to the formation of traditional Wacker-type products, enantioselective migratory insertion is followed by β-hydride elimination towards the adjacent alcohol. Deuterium labeling experiments suggest a syn-migratory insertion of the alkene into the Pd–O bond. A broad scope of phenols, various allylic alcohols, and an alkyl hydroperoxide are viable coupling partners in this process.
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