TiO2 as a Reusable Catalyst for the One-Pot Synthesis of 3,4-Dihydropyrimidin-2 (1H)-ones under Solvent-Free Conditions

[摘要]：An efficient solvent-free method for the synthesis of various 3,4-dihydropyrimidin-2(1H)-ones using TiO2 as a recyclable heterogeneous catalyst is described. Compared to know methods, satisfactory results are obtained with excellent yields, short reaction times, and simplicity in the experimental procedure.

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