期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 143, 期 36, 页码 14667-14675出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.1c05874
关键词
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资金
- Swiss National Science Foundation
The study presents a copper-catalyzed intermolecular functionalization process for diverse functionalization of unactivated C(sp(3))-H bonds and aliphatic carboxylic acids, introducing a wide range of functional groups. The chemoselectivity can be switched from C-H functionalization to decarboxylative functionalization by adjusting the bond dissociation energy of the hydrogen atom transfer reagent.
Intermolecular functionalization of C(sp(3))-H bonds and aliphatic carboxylic acids enables the efficient synthesis of high value-added organic compounds from readily available starting materials. Although methods involving hydrogen atom transfer have been developed for such functionalization, these methods either work for only activated C(sp(3))-H bonds or bring in a narrow set of functional groups. Here we describe a Cucatalyzed process for the diverse functionalization of both unactivated C(sp(3))-H bonds and aliphatic carboxylic acids. The process is enabled by the trapping of alkyl radicals generated through hydrogen atom abstraction by arylsulfonyl-based SOMOphiles, which introduces a large array of C, N, S, Se, and halide-based functional groups. The chemoselectivity can be switched from C-H functionalization to decarboxylative functionalization by matching the bond dissociation energy of the hydrogen atom transfer reagent with that of the target C-H or O-H bond.
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