Copper-Catalyzed Intermolecular Hydroamination of Arylamines or Aza-Heterocycles with Nitrostyrene Derivatives
作者:Subin Park、Seongil Kang、Yunmi Lee
DOI:10.1002/adsc.201801582
日期:2019.3.5
A new copper‐catalyzed protocol for the intermolecular anti‐Markovnikov addition of arylamines or heterocycles to terminal and unsymmetrical 1,2‐disubstituted vinylarenes has been developed. The direct hydroamination is catalyzed by a readily available N‐heterocyclic carbene‐based copper complex and KOt‐Bu, and the use of MeOH as an additive enhances the reactivity. The method provides a broad range
已经开发出了一种新的铜催化方案,用于将芳胺或杂环分子间反马氏化学加成到末端和不对称的1,2-二取代的乙烯基芳烃上。直接加氢胺化反应由易于获得的N杂环卡宾铜络合物和KO t Bu催化,使用MeOH作为添加剂可提高反应活性。该方法以良好至优异的产率提供了多种带有各种官能团的新型和通用的胺化合物。
Dissecting Solvent Effects on Hydrogen Bonding
作者:Nicole Y. Meredith、Stefan Borsley、Ivan V. Smolyar、Gary S. Nichol、Christopher M. Baker、Kenneth B. Ling、Scott L. Cockroft
DOI:10.1002/anie.202206604
日期:2022.7.25
The perturbing effects of solvation obscure the energetics of H-bonding interactions. Experimental H-bond energies were determined in a wide range of competitive solvents using synthetic molecular balances. Dissection of the H-bond and solvation energetics using Hunter's solvation model enabled the direct comparison of experimental and gas-phase computational energies and the rationalization of competing