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A barbiturate derivative, 4-(2,4,6-trioxo-tetrahydro-pyrimidine-5-ylidenemethyl)-benzoic acid (L1) possessing functional complementarity to amides has been synthesized and characterized. Its binding separately with urea and acetamide was monitored using UV–vis, fluorescence and 1 H-NMR spectroscopic titrations. Experiments suggested stronger binding of L1 with urea as compared to acetamide...
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