A facile, regioselective and controllable bromination of aromatic amines using a CuBr2/Oxone® system
作者:Xin-Le Li、Wei Wu、Xin-Heng Fan、Lian-Ming Yang
DOI:10.1039/c3ra41664j
日期:——
A combination of cupric bromide and Oxone® serves as a facile, mild and effective reagent for the bromination of aromatic amines. Primary, secondary and tertiary aromatic amines are all suitable substrates. The reaction possesses high regioselectivity and functional group tolerance, and mono- and multi-brominated products can be obtained controllably in moderate to excellent yields.
N,N‐Dimethylaminophenyl moiety is a common fragment in medicinal chemistry as several pharmaceuticals bearing this privileged motif are on the market and under clinical evaluation. Oxidative N‐demethylation is generally regarded as the major metabolic pathway. However, pharmacokinetics, metabolites studies as well as the further structural modification are precluded by the impracticality of chemical