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Paper | Regular issue | Vol 36, No. 6, 1993, pp.1287-1304
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6286
Synthesis of Indolo[1,2-b]isoquinolinediones; Reduction of 2-[(Substituted Phenyl)methylidene]-3-oxo-2,3-dihydroindole

Jean-Yves Mérour,* Simone Piroëlle, and Françoise Cossais

*Laboratoire de Chimie Bioorganique et Analytique, URA-CNRS N° 499,UFR Sciences Université d‘Orléans, 45067 Orleans Cedex 2, France


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-methoxycarbonylphenyl)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.