Physico-Chemical Characterization of Some 5,5-Disubstituted-1,3-Dixanthyl Barbituric Acids

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The dixanthyl derivatives of 21 clinically important barbituric acids have been prepared. Melting points, infrared spectra, and x-ray powder-diffraction patterns of the purified compounds are presented. Infrared evidence is used to discuss the position of the linkage between the xanthyl and barbiturate portions of the derivatives. The experimental data should prove of particular value for the microchemical identification of barbiturates.

Document Type: Research Article


Affiliations: 1: Research Laboratories, Food and Drug Directorate, Department of National Health and Welfare, Ottawa, Canada 2: Department of Biology, Faculty of Science, University of Ottawa, Ottawa, Canada; present address: Dean of the Faculty of Arts and Science, Laurentian University, Sudbury, Canada

Publication date: July 1, 1967

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