Synthesis of imidazo[1,5-<i>a</i>]pyridines via cyclocondensation of 2-(aminomethyl)pyridines with electrophilically activated nitroalkanes
作者:Dmitrii A Aksenov、Nikolai A Arutiunov、Vladimir V Maliuga、Alexander V Aksenov、Michael Rubin
DOI:10.3762/bjoc.16.239
日期:——
Imidazo[1,5-a]pyridines were efficiently prepared via the cyclization of 2-picolylamines with nitroalkanes electrophilically activated in the presence of phosphorous acid in polyphosphoric acid (PPA) medium.
咪唑并[1,5- a ]吡啶是通过在多磷酸(PPA)介质中在亚磷酸存在下用亲电子活化的硝基烷与2-吡啶甲基胺环化而有效制备的。