Arylseleninic acid derivative decomposition towards Se(<scp>ii</scp>)-based electrophiles: an elegant approach to construct 3-selanyl-imidazopyridines
作者:João M. Anghinoni、Sabrina S. Ferreira、Ricardo F. Schumacher、Bernardo A. Iglesias、Gelson Perin、Filipe Penteado、Eder J. Lenardão
DOI:10.1039/d2nj06086h
日期:——
Benzeneseleninic acid (BSA) derivatives were used as an alternative, but extremely useful, source of Se(II)-based electrophiles, generated in situ by thermal decomposition, to construct C–Se bonds, accessing 3-selanylimidazopyridines after reaction with 2-substituted imidazopyridines. A total of thirty-four derivatives were synthesized in 50–94% yield, seventeen of which were so far unprecedented.
苯亚硒酸 (BSA) 衍生物被用作替代物,但非常有用,基于 Se( II ) 的亲电子试剂的来源,通过热分解原位生成,构建 C-Se 键,在与 2-取代的反应后获得 3-selanylimidazopyridines咪唑并吡啶类。总共合成了 34 种衍生物,产率为 50-94%,其中 17 种是迄今为止前所未有的。描述了一个简单有效的协议,仅提供 H 2 O 和二芳基二硒化物作为副产品。二芳基二硒化物在纯化过程中可以很容易地回收,并再次转化为 BSA 用于新的反应。