作者:William I. Nicholson、Fabien Barreteau、Jamie A. Leitch、Riley Payne、Ian Priestley、Edouard Godineau、Claudio Battilocchio、Duncan L. Browne
DOI:10.1002/anie.202106412
日期:2021.9.27
The direct mechanochemical amidation of esters by ball milling is described. The operationally simple procedure requires an ester, an amine, and substoichiometric KOtBu and was used to prepare a large and diverse library of 78 amide structures with modest to excellent efficiency. Heteroaromatic and heterocyclic components are specifically shown to be amenable to this mechanochemical protocol. This
Synthesis, characterization and antibacterial activity of cobalt(III) complexes with pyridine–amide ligands
作者:Anurag Mishra、Nagendra K. Kaushik、Akhilesh K. Verma、Rajeev Gupta
DOI:10.1016/j.ejmech.2007.08.015
日期:2008.10
have been used to synthesize kinetically stable cobalt(III) compounds [Co(L1-3)3] (1-3) and Na[Co(L4-6)2] (4-6), respectively. The Co(III) ion is in octahedral environment and is surrounded by three bidentate ligands in complexes 1-3 and two tridentate ligands in complexes 4-6. Ligands coordinate the cobalt center via amidic-N and pyridine-N centers forming a 5-membered chelate ring. Complexes 1-6 have
Copper-Catalyzed Electrochemical C–H Amination of Arenes with Secondary Amines
作者:Qi-Liang Yang、Xiang-Yang Wang、Jia-Yan Lu、Li-Pu Zhang、Ping Fang、Tian-Sheng Mei
DOI:10.1021/jacs.8b07380
日期:2018.9.12
electrochemical C-H aminations of arenes at room temperature using undivided electrochemical cells, thereby providing a practical solution for the construction of arylamines. The use of n-Bu4NI as a redox mediator is crucial for this transformation. On the basis of mechanistic studies including kinetic profiles, isotope effects, cyclic voltammetric analyses, and radical inhibition experiments, the reaction appears