An efficient solvent-free synthesis of 2-(alkylamino)-2-oxo-1-arylethyl-6,12-dioxo-6,12-dihydroindolo[1,2-b]isoquinoline-11-carboxylate derivatives via four-component reaction


A one-pot approach for the synthesis of a new series of 2-(alkylamino)-2-oxo-1-arylethyl-6,12-dioxo-6,12-dihydroindolo[1,2-b]isoquinoline-11-carboxylate derivatives via a four-component reaction using isatin, homophthalic anhydride, cyclohexyl isocyanide and an aldehyde is described. This method has several advantages such as being catalyst- and solvent-free reaction and a high-efficiency process with high to excellent yields.

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We gratefully acknowledge financial support from the Research Council of the University of Isfahan.

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Correspondence to Abbas Rahmati.

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Kenarkoohi, T., Rahmati, A. An efficient solvent-free synthesis of 2-(alkylamino)-2-oxo-1-arylethyl-6,12-dioxo-6,12-dihydroindolo[1,2-b]isoquinoline-11-carboxylate derivatives via four-component reaction. Mol Divers 23, 1011–1018 (2019).

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  • Passerini-like reaction
  • Dihydroindole
  • Isoquinoline
  • Isocyanide
  • Indoloisoquinoline