Synthesis of Indolo[1,2-b]isoquinolinediones; Reduction of 2-[(Substituted Phenyl)methylidene]-3-oxo-2,3-dihydroindole
摘要:
Indolo[1,2-b]isoquinoline-5,12-dione and the isomeric 6,12-dione have been prepared respectively from 1-sulfonylindole and 1-acetyl-2-[(2-methoxycarbonyl phenyl)methylidene]-3-oxo-2,3-dihydroindole; the reduction of 1-acetyl-2-[(substituted phenyl)methylidene]-3-oxo-2,3-dihydroindole and their oxygen analogs with sodium borohydride have been studied.
Ag(I)-catalyzed synthesis of 2-azidomethyl benzofurans/indoles from linear and readily available hydroxyl/amino-phenyl propargyl alcohols is described via a highly regioselective C–O and C–N bond formation. Control experiments reveal that the reaction involves the sequential Ag(I)-catalyzed 5-exo-dig cyclization and a catalyst free γ-allylic azidation. The synthetic utility of this method has been
Indolo[1,2-b]isoquinoline-5,12-dione and the isomeric 6,12-dione have been prepared respectively from 1-sulfonylindole and 1-acetyl-2-[(2-methoxycarbonyl phenyl)methylidene]-3-oxo-2,3-dihydroindole; the reduction of 1-acetyl-2-[(substituted phenyl)methylidene]-3-oxo-2,3-dihydroindole and their oxygen analogs with sodium borohydride have been studied.