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Communication | Regular issue | Vol 48, No. 5, 1998, pp.865-868
Published online, 1st January, 1970
DOI: 10.3987/COM-98-8140
Heteroaromatic Tripoles. Syntheses of Aminopyrimidine-Bispyridinium Salts and Bispyridiniopyrimidinaminides

Andreas Schmidt

*Ernst-Moritz-Arndt-Universität Greifswald, Institut für Chemie und Biochemie, Soldmannstrasse 16, D-17487 Greifswald, Germany


Depending on the substitution pattern of the 4-aminophenyltrichloropyrimidine derivatives (1, 2) reaction with 4-dimethylaminopyridine and 4-(pyrrolidin-1-yl)pyridine, respectively, formed either the pyrimidine-dipyridinium salts (3, 4, 7, 8) or the tripolar species (5, 6, 9, 10) which are the first examples of mesomeric betainium salts.