Organic Letters · 2012 · 142 citations · 35 references
Facile Synthetic ProtocolEngineeringHeterocyclicNatural SciencesDispirooxindole-fused HeterocyclesDiversity-oriented SynthesisFacile SynthesisHuisgen 1,4-DipolesOrganic ChemistrySynthetic ChemistryChemistryComplex Dispirooxindole-fused HeterocyclesHeterocycle ChemistryDomino 1,4-Dipolar AdditionBiomolecular Engineering
A facile synthetic protocol was developed for the efficient synthesis of complex dispirooxindole-fused heterocycles via a three-component reaction. The key strategies involve a domino 1,4-dipolar addition and Diels-Alder reaction of the in situ generated Huisgen 1,4-dipoles from the addition reaction of 4-dimethylaminopyridine with acetylenedicarboxylate to 3-phenacylideneoxindole.
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