Titanium and Cobalt Bimetallic Radical Redox Relay for the Isomerization of N-Bz Aziridines to Allylic Amides.

Titanium and Cobalt Bimetallic Radical Redox Relay for the Isomerization of N-Bz Aziridines to Allylic Amides.
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DOI:
10.1055/s-0037-1610779
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发表时间:
2021
期刊:
Synthesis
影响因子:
--
通讯作者:
Lin S
Lin S
中科院分区:
其他
文献类型:
--
作者:
Wood DP;Guan W;Lin S

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本文采用双金属自由基氧化还原策略,在钛(III)催化下在温和条件下生成烷基自由基,在钴(II)催化下通过氢原子转移终止烷基自由基,使N-Bz亚氮嘧啶无碱异构化为N-Bz烯丙基酰胺。该反应为从烯烃合成烯丙基酰胺提供了一种替代策略,通过三步序列来完成正式的转位烯丙基胺化。
Herein a bimetallic radical redox-relay strategy is employed to generate alkyl radicals under mild conditions with titanium(III) catalysis and terminated via hydrogen atom transfer with cobalt(II) catalysis to enact base-free isomerizations of N-Bz aziridines to N-Bz allylic amides. This reaction provides an alternative strategy for the synthesis of allylic amides from alkenes via a three-step sequence to accomplish a formal transpositional allylic amination.
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