Intramolecular Diels-Alder Reaction of 3-Formimidoylindoles: Synthesis of Fused Pyridoindole Compounds
作者:Yasuo Shimoji、Toshihiko Hashimoto、Yoji Furukawa、Hiroaki Yanagisawa
DOI:10.3987/com-92-6191
日期:——
Intramolecular Diels-Alder reaction of 3-formimidoylindoles having olefinic substituents at the 1-position of the indole ring gave stereoselectively fused pyridoindole compounds. Double bond migration from 2,3,3a,4,12,12a,12b,12c-octahydrobenz[de]inidolo[3,2,1-ij][1,6]naphthyridin-11(1H)-ones (4) to 2,3,3a,4,5,12,12a,12b-octahydrobenz[de]indolo[3,2,1-ij][1,6]naphthyridin-11(1H)-one (5) was performed using 10% Pd-C as a catalyst.