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Synthesis of pyrimidines, aromatic and heteroaromatic acids as Biginelli reaction catalysts
Aromatic as well as heteroaromatic acids were found to beexcellent catalysts for the Biginelli three component synthesisof dihydropyrimidinones. Benzoic acid, substituted benzoic acids, five- and six- membered heterocyclic acids can be used for this purpose