KOBu<sup>t</sup>/DMSO-Mediated α-C–H Vinylation of <i>N</i>-Benzyl Ketimines with Acetylene Gas: Stereoselective Synthesis of (<i>E</i>,<i>Z</i>)-2-Azadienes
作者:Ivan A. Bidusenko、Elena Yu. Schmidt、Nadezhda I. Protsuk、Igor A. Ushakov、Alexander V. Vashchenko、Andrei V. Afonin、Boris A. Trofimov
DOI:10.1021/acs.orglett.0c00564
日期:2020.4.3
Several imines, readily derived from aryl methyl ketones and benzylamines, react with acetylene gas in KOBut/DMSO system to afford 2-azadienes stereoselectively. This new C–C bond constructing reaction involves, instead of the expected ethynylation of the C═N bond, the addition of azaallyl anions to the triple bond of acetylene.
易于衍生自芳基甲基酮和苄胺的几种亚胺在KOBu t / DMSO系统中与乙炔气体反应,以立体选择性地得到2-氮杂二烯。这种新的C–C键构建反应涉及将乙二烯丙基阴离子加到乙炔的三键上,而不是C═N键的预期乙炔化。