Abstract
Abstract Two independent and consecutive intermolecular Michael addition of 1,3-dimethylbarbituric acid to 2,6-diarylidenecyclohexanone as an α,β-unsaturated ketone leads to synthesis of a new type of meso form 5,5′-((2-oxocyclohexane-1,3-diyl)bis(arylmethylene))bis(1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione) in good yield. These compounds showed a 2D-polymeric structure via intermolecular H-bonds. Structure elucidation is carried out by 1H NMR, 13C NMR, FT-IR, and X-ray diffraction analyses. A plausible reaction mechanism is discussed.
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