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■ Cycloaddition Reactions of Azidomethyl Phosphonate with Acetylenes and Enamines. Synthesis of Triazoles

Frédéric Louërat, Khalid Bougrin, André Loupy,*Ana M^a Ochoa de Retana, Jaione Pagalday, and Francisco Palacios*

*Departamento de Química Orgánica, Facultad de Farmacia, Universidad del País Vasco, Apartado 450, 01080 Vitoria-Gasteiz, Spain

Abstract

β-Functionalized alkyltriazoles can be efficiently prepared under solvent-free conditions, eventually by coupling with microwave activation. Cycloadditions of azides and poorly activated acetylenes or enamines are thus possible with interesting selectively in the latter case.