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Paper | Regular issue | Vol 29, No. 10, 1989, pp.1951-1956
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5078
A New Heterocyclic Rearrangement: Conversion of 1,2-Dihydropyrimidines into Pyrroles

Antonio de la Hoz, José Elguero, and Carmen Pardo*

*Departamento de Química Orgánica, Facultad de Química, Universidad Complutense de Madridas, Ciudad Universitaria, E-28040 Madrid, Spain


2-[hydroxy(methoxycarbonyl)methyl]-2-(methoxycarbonyl)-1-phenyl-1,2-dihydropyridines react with acetic anhydride to give 2-methoxycarbonyl pyrroles. A reaction intermediate has been isolated and a mechanism is proposed for the reaction process.