A Biomimetic Electrocatalytic System for the Atom-Economical Chemoselective Synthesis of Secondary Amines
摘要:
A facile one-pot oxidation-imine formation-reduction route to secondary amines can be achieved electrolytically from primary amines. This atom-economical 1(ox)-mediated sequence, leaving ammonia as the sole byproduct, allows the rapid chemoselective synthesis of secondary amines, at both ambient temperature and pressure.
The tandem oxidation–inverse electron demand Diels–Alder reaction of o-aminophenol derivatives and enamines has been accomplished at room temperature using a stoichiometric amount of manganese dioxide as the oxidant to furnish highly substituted 1,4-benzoxazine cycloadducts with complete regiochemical control. Because of its efficiency in introducing diverse elements in both cycloaddition partners
Redox‐Mediated Amination of Pyrogallol‐Based Polyphenols
作者:Salavat S. Ashirbaev、Natércia F. Brás、Patricia Frei、Kuangjie Liu、Simone Moser、Hendrik Zipse
DOI:10.1002/chem.202303783
日期:2024.2.26
Amyloids are known to be modified by natural polyphenols via amination. This study investigates the oxidative coupling mechanisms between polyphenols and N-nucleophiles, using in vitro and in silico approaches. It is shown that polyphenols with a pyrogallol substructure and an electron-withdrawing group at the C4a-position are most effective. These insights can play a crucial role in drug design against