Triiodide-Mediated δ-Amination of Secondary C-H Bonds.
Triiodide-Mediated δ-Amination of Secondary C-H Bonds.
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DOI:
10.1002/anie.201604704
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发表时间:
2016-08-16
影响因子:
16.6
通讯作者:
Nagib, David A.
中科院分区:
文献类型:
--
作者:
Wappes, Ethan A.;Fosu, Stacy C.;Chopko, Trevor C.;Nagib, David A.
The δ C-H amination of unactivated, secondary C-H bonds to form a broad range of functionalized pyrrolidines has been developed via a triiodide (I3−)-mediated strategy. By in situ (i) oxidation of sodium iodide and (ii) sequestration of the transiently generated iodine (I2) as I3−, this approach precludes undesired I2− mediated decomposition that can otherwise limit synthetic utility to only weak C-H bonds. The mechanism of this triiodide-mediated cyclization of unbiased, secondary C-H bonds, via thermal or photolytic initiation, is supported by NMR and UV-Vis spectroscopic data and intercepted intermediates.
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