CuBr-Catalyzed Reaction of<i>N</i>,<i>N</i>-Dimethylanilines and Silyl Enol Ethers: An Alternative Route to β-Arylamino Ketones
作者:Lehao Huang、Xunbin Zhang、Yuhong Zhang
DOI:10.1021/ol901347t
日期:2009.8.20
A wide range of silylenolethers undergo the reactions with N,N-dimethylanilines in the presence of transition metal catalysts under mild conditions to give β-arylamino ketones. In the cases of silylenolethers derived from unsymmetrical ketones, regiospecific addition of carbonyl compounds was obtained at the olefinic position of silylenolether.
Cu-catalyzed oxidative Povarov reactions between N-alkyl N-methylanilines and saturated oxa- and thiacycles
作者:Rahul Kisan Kawade、Deepak B. Huple、Rong-Jing Lin、Rai-Shung Liu
DOI:10.1039/c5cc01287b
日期:——
Cu-catalyzed oxidative Povarov reactions between N,N-dialkylanilines and saturated oxa- or thiacycles with tert-butyl hydroperoxide (TBHP) are described.
Selective access to fused tetrahydroquinolines <i>via</i> a copper-catalysed oxidative three-component annulation reaction
作者:Peng Duan、Jialu Sun、Zhibo Zhu、Min Zhang
DOI:10.1039/d2ob02066a
日期:——
Via a copper-catalyzed three-component annulation reaction, we herein report a new method for the direct and syn-selective construction of cyclic ether-fused tetrahydroquinolines from readily available secondary anilines, saturated five or six-membered cyclic ethers, and paraformaldehyde. The synthesis features operational simplicity, excellent step and atom efficiency, good functionality and substrate