Prenyl Praxis: A Method for Direct Photocatalytic Defluoroprenylation.
Prenyl Praxis: A Method for Direct Photocatalytic Defluoroprenylation.
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DOI:
10.1021/jacs.8b09156
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发表时间:
2018-11-28
影响因子:
15
通讯作者:
Weaver JD 3rd
中科院分区:
文献类型:
--
作者:
Priya S;Weaver JD 3rd
The prenyl fragment is the quintessential constituent of terpenoid natural products, a diverse family which contains numerous members with diverse biological properties. In contrast, fluorinated and multifluorinated arenes make up an important class of anthropogenic molecules which are highly relevant to material, agricultural, and pharmaceutical industries. While allylation chemistry is well developed, effective prenylation strategies hav e been less forthcoming. Herein, we describe the photocatalytic defluoroprenylation, a powerful method that provides access to “hybrid molecules” that possess both the functionality of a prenyl group and fluorinated arenes. This approach involves direct prenyl group transfer under very mild conditions, displays excellent functional group tolerance, and relatively short reaction times (<4 h), which is the fastest photocatalytic C–F functionalization developed to date. Additionally, the strategy can be extended to include allyl and geranyl (10 carbon fragment) transfers. Another prominent finding is a reagent dependent switch in regioselectivity of the major product from para to ortho C–F functionalization.
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