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Communication | Regular issue | Vol 36, No. 10, 1993, pp.2255-2258
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6489
Iminophosphorane-mediated Synthesis of Oxazole Alkaloids: One-Step Preparation of O-Methylhalfordinol and Annuloline

Pedro Molina,* Pilar M. Fresneda, and Pedro Almendros

*Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, E-30071, Murcia, Spain


The three-component reaction between triphenylphosphine, 4-methoxyphenacyl azide and nicotinoyl chloride or 3,4-dimethoxycinnamoyl chloride leads directly in good yields to O-methylhalfordinol or annuloline respectively.