Metal free oxidative halogenation of N-aryl enaminones has been demonstrated using a DMSO–halo acid combination under mild reaction conditions. This strategy allows a facile halogenation of enaminones through α functionalization leading to a broad range of α-halo-N-aryl substituted enaminones in good to excellent yields in a short period of time. Additionally, the use of readily available and inexpensive
Correction: Insights into the unexpected chemoselectivity in Brønsted acid catalyzed cyclization of isatins with enaminones: convenient synthesis of pyrrolo[3,4-c]quinolin-1-ones and spirooxindoles
作者:Hui Xu、Bei Zhou、Pan Zhou、Jie Zhou、Yuehai Shen、Fu-Chao Yu、Ling-Ling Lu
DOI:10.1039/c6cc90308h
日期:——
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Direct copper(II)-mediated regioselective α-halogenation of N-aryl enaminones
A mild copper(II)-mediated α-halogenation of N-aryl enaminones was developed. α-Halogenated N-aryl enaminones were obtained in moderate to good yields using CuX2 in EtOH at 40 °C.