该成果以“1,5-Hydrogen atom transfer of α-iminyl radical cations: a new platform for relay annulation for pyridine derivatives and axially chiral heterobiaryls”(《α-亚胺阳离子自由基 1,5-HAT 新模式构筑(轴手性)稠合吡啶分子...
该工作为解决传统环胺炔基化方法中的固有问题提供了一种新策略,进一步的体系扩展正在进行中。 论文信息: Photoinduced Copper-Catalyzed Asymmetric C(sp3)-H Alkynylation of Cyclic Amines by Intramolecular 1,5-Hydrogen Atom Transfe...
近日,魏晔教授课题组结合亚胺自由基异构化氢迁移策略,通过合理设计,在铁和仲胺协同催化下,首次实现了α-亚胺阳离子自由基1,5-氢迁移的新反应模式,成功构建了模块化合成结构新颖的稠合吡啶和轴手性氮杂联芳基化合物的化学反应平台(图1)。 图1. α-亚胺阳离子自由基1,5-氢迁移 在最佳的反应条件下,作者对底物的...
该工作以“Visible-Light-Catalyzed Tandem Radical Addition/1,5-Hydrogen Atom Transfer/Cyclization of 2-Alkynylarylethers with Sulfonyl Chlorides”为题近期发表在Organic Letters上(DOI: 10.1021/acs.orglett.2c01977),研究工作实验部分主要由宁波大学本科生李龙完成(论文作者:Long Li、Jiao-Zhe Li、Yong-Bin Sun...
5-hydrogen atom transferdeuterium labeling4atheoretical calculationconformational study1,5-Hydrogen atom transfer from #alpha#,#beta# and #gamma# carbons of cycloalkanones to analkenyl or aryl radicalon a side chain has beenstudied systematically.Deuterium labeling experiments and theoretical calcualtions...
该工作以“Visible-Light-Catalyzed Tandem Radical Addition/1,5-Hydrogen Atom Transfer/Cyclization of 2-Alkynylarylethers with Sulfonyl Chlorides”为题近期发表在Organic Letters上(DOI: 10.1021/acs.orglett.2c01977),研究工作实验部分主要由宁波大学本科生李龙完成(论文作者:Long Li、Jiao-Zhe Li、Yong-Bin Sun...
Tuning the reactivity of alkoxyl radicals from 1,5-hydrogen atom transfer to 1,2-silyl transfer Zhaoliang Yang, Yunhong Niu, Xiaoqian He, Suo Chen, Shanshan Liu, Zhengyu Li, Xiang Chen, Yunxiao Zhang, Yu Lan & Xiao Shen Nat. Commun.,2021,12, 2131, DOI: 10.1038/s41467-021-22382-y ...
Nitrile Side Chain. ChemInform Abstract: 1,5‐Hydrogen Atom Transfer/Radical Cyclization of Cycloalkanones Bearing a β‐Iodo α,β‐Unsaturated Ester or Nitrile Side Chain.ChemInform Abstract: 1,5‐Hydrogen Atom Transfer/Radical Cyclization of Cycloalkanones Bearing a β‐Iodo α,β‐Unsaturated ...
自由基介导的分子内的氢原子转移(Hydrogen Atom Transfer, HAT)是一种温和、高效的活化远程碳氢键的方法,可用于合成功能化的环状化合物。近日,南京师范大学孙培培教授课题组报道了光催化诱导的自由基加成串联分子内的1,5-HAT、环化反应,成功合成了磺酰化的二氢苯并呋喃衍生物,相关成果在线发表于Org。 Lett。(DOI:...
该工作以“Visible-Light-Catalyzed Tandem Radical Addition/1,5-Hydrogen Atom Transfer/Cyclization of 2-Alkynylarylethers with Sulfonyl Chlorides”为题近期发表在Organic Letters上(DOI: 10.1021/t.2c01977),研究工作实验部分主要由宁波大学本科生李龙完成(论文作者:Long Li、Jiao-Zhe Li、Yong-Bin Sun、Chun-Me...