Synthesis of 1,3-Disubstituted Imidazo[1,5-<i>a</i>]pyridines from Amino Acids via Catalytic Decarboxylative Intramolecular Cyclization
作者:Huiqiao Wang、Wentao Xu、Lilan Xin、Wenmin Liu、Zhiqiang Wang、Kun Xu
DOI:10.1021/acs.joc.6b00343
日期:2016.5.6
A copper/iodine cocatalyzed decarboxylative cyclization of α-amino acids is described. Starting from the readily available amino acids and either 2-benzoylpyridines or 2-benzoylquinolines, 1,3-disubstituted imidazo[1,5-a]pyridines and 1,3-disubstituted imidazo[1,5-a]quinolines were prepared in excellent yields.
描述了铜/碘共催化的α-氨基酸的脱羧环化。从容易获得的氨基酸和2-苯甲酰基吡啶或2-苯甲酰基喹啉开始,以优异的条件制备了1,3-二取代的咪唑并[1,5- a ]吡啶和1,3-二取代的咪唑并[1,5- a ]喹啉产量。