Synthesis and characterization of bisoxazolines- and pybox-copper(<scp>ii</scp>) complexes and their application in the coupling of α-carbonyls with functionalized amines
[(Dm-Pybox)CuBr2] is efficient in catalyzing α-amination of ketones and esters, which tolerates functionality on the carbonyl and amine reaction components.
synthesis of α-amino ketones via the oxidative cross-dehydrogenative coupling of ketones and secondary amines has been developed. The electrochemistry performs in a simple undivided cell using NH4I as a redox catalyst and a cheap graphite plate as electrodes under constant current conditions. Gram-scale reaction demonstrates the practicality of the protocol. The reaction is proposed to procced through an
the first time to synthesize pharmaceutically important α-aminoketonesfrom readily available benzylic secondary alcohols and amines using N-bromosuccinimide. This new reaction proceeds via three consecutive steps involving oxidation of alcohols, α-bromination of ketones, and nucleophilic substitution of α-bromo ketones to give α-aminoketones. Importantly, this novel one-pot greener reaction avoids
Photochemical reductive deamination of alpha-amino aryl alkyl ketones
作者:Ji-Yuan Liang、Yi-Wen Su、You-Quan Zou
DOI:10.1039/d3cc04837c
日期:——
Photochemical reductive deamination of alpha-amino arylalkylketones under photosensitizer-free conditions is presented. This protocol features high efficiency and selectivity. A plausible reaction pathway is proposed based on ultraviolet–visible absorption investigation, control experiments and deuterium-labelling studies. Mechanistic study reveals that the alpha-hydrogen atom of the ketone product originated