Annulation of Pyridine to Indole by A Tandem Aza-Wittig/Electrocyclization Strategy: Synthesis of Pyrido[2,3-<i>b</i>]indoles
作者:Pedro Molina、Pilar M. Fresneda
DOI:10.1055/s-1989-27422
日期:——
Iminophosphorane 2, prepared form 1 and nitromethane, reacts with isocyanates to give directly 2-alkyl(aryl)amino-3-nitro-9-phenyl-9H-pyrido [2,3-b]indoles 5.
制备形式1的亚氨基正膦2和硝基甲烷与异氰酸酯反应直接得到2-烷基(芳基)氨基-3-硝基-9-苯基-9H-吡啶并[2,3-b]吲哚5。