Organic Letters · 2015 · 71 citations · 38 references
Natural SciencesChemistryOrganic ChemistryHeterocycle SynthesisHeterocyclic ChemistryOrganic SynthesisRetrosynthetic AnalysisCascade ReactionsEnamine ChemistryEnamine FormationIndole ChemistryIndole DerivativesIndole SynthesisPyrrole ChemistryPyrrole Synthesis
5-Vinyl-pyrrole and 4-hydroxy-indole derivatives are synthesized by metal-free aldol/cyclization/aromatization cascade reactions of in situ generated enamines with 2,3-diketoesters. This convenient atom-economical process produces multifunctional pyrrole and indole products in moderate to good yields.
38