One-Pot, Three-Component Synthesis of 7-Azaindole Derivatives from N-Substituted 2-Amino-4-cyanopyrroles, Various Aldehydes, and Active Methylene Compounds
作者:Marcelo Vilches-Herrera、Ingo Knepper、Nayane de Souza、Alexander Villinger、Vyacheslav Ya. Sosnovskikh、Viktor O. Iaroshenko
DOI:10.1021/co300042v
日期:2012.7.9
practical route to 7-azaindole framework has been developed by one-pot, three-component cyclocondensation of N-substituted 2-amino-4-cyanopyrroles, various aldehydes, and activemethylenecompounds in ethanol or acetic acid at reflux. Reactions involving tetronic acid, indane-1,3-dione, dimedone, and 5-phenylcyclohexane-1,3-dione gave carbocyclic fused 7-azaindoles, whereas Meldrum’s acid, benzoylacetonitrile