Net-1,2-Hydrogen Atom Transfer of Amidyl Radicals: Toward the Synthesis of 1,2-Diamine Derivatives
作者:Yonggang Jiang、Dongxiang Liu、Madeline E. Rotella、Guogang Deng、Zhengfen Liu、Wen Chen、Hongbin Zhang、Marisa C. Kozlowski、Patrick J. Walsh、Xiaodong Yang
DOI:10.1021/jacs.3c04376
日期:2023.7.26
Beginning with singleelectrontransferfrom 2-azaallyl anions to N-alkyl N-aryloxy amides, the latter generate amidylradicals. The amidylradical undergoes a net-1,2-HAT to generate a C-centered radical that participates in an intermolecular radical–radical coupling with the 2-azaallyl radical to generate 1,2-diamine derivatives. Mechanistic and EPR experiments point to radical intermediates. Density
Amidyl Radical Directed Remote Allylation of Unactivated sp
<sup>3</sup>
C−H Bonds by Organic Photoredox Catalysis
作者:Kui Wu、Lushun Wang、Sonivette Colón‐Rodríguez、Gerd‐Uwe Flechsig、Ting Wang
DOI:10.1002/anie.201811004
日期:2019.2.4
visible‐light‐mediated allylation of unactivated sp3 C−H bonds is reported. The remote allylation was directed by the amidyl radical, which was generated by photocatalytic fragmentation of a pre‐functionalized amide precursor. Both aromatic and aliphatic amide derivatives could successfully deliver the remote C−H allylation products in good yields. A variety of electron deficient allylsulfone systems could