Organic Letters · 2013 · 80 citations · 45 references
Terminal AlkyneCross-coupling ReactionEngineeringWater SolventMetal-free Decarboxylative Three-componentOrganic ChemistryOrganometallic CatalysisCatalysisChemistryAsymmetric CatalysisSynthetic ChemistryEnantioselective SynthesisBiomolecular Engineering
A metal-free decarboxylative three-component coupling reaction was developed. When alkynyl carboxylic acids, paraformaldehyde, and amines were reacted in CH3CN at 65 °C for 3 h, the desired propargylamines were obtained in good yields. This coupling reaction also showed good yield in water solvent. This reaction showed higher selectivity toward alkynyl carboxylic acids than a terminal alkyne.
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