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Report | Regular issue | Vol 14, No. 8, 1980, pp.1135-1138
Published online, 1st January, 1970
DOI: 10.3987/R-1980-08-1135
The Demethylation of Aporphines with Sulfuric Acid

Luis Castedo,* Angel Rodriguez de Lera, José M. Saá, Rafael Suau, and Carmen Villaverde

*Departamento de Química Orgánica e Unidade Asociada al CSIC, Facultad de Quimica, Universidad de Santiago de Compostela, E-15706, Santiago de Compostela, Spain

Abstract

Sulfuric acid at room temperature has been found a useful reagent for interconverting aporphine alkaloids by selective O-demethylation. This was controlled by electronic or steric effects.