Chemical Communications · 1998 · 57 citations · 3 references
Natural SciencesChemistryMedicinal ChemistryCarbohydrate ChemistryCatalysisOrganic ChemistryHeterocycle SynthesisHeterocyclic ChemistryMacrocycle SynthesisOrganic SynthesisRetrosynthetic AnalysisAsymmetric Heterocycle SynthesisAsymmetric SynthesisLariat FormationPhase-transfer CatalysisPhase-transfer CatalystsStereoselective Sugar Synthesis
New chiral monoaza-15-crown-5 derivatives and lariat ethers anellated to phenyl β-D-glucoside have been synthesized which show significant asymmetric induction as phase transfer catalysts in the Michael addition of 2-nitropropane to chalcone (84% ee) and in the Darzens condensation of phenacyl chloride with benzaldehyde (74% ee).
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Asymmetric Michael addition and deracemization of enolate by chiral crown ether
Péter Bakó, György M. Keserű, Melinda Albert et al. · Tetrahedron · 1998 · 43 citations