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An efficient solvent free method for the synthesis of various 3,4-dihydropyrimidin-2(1H)-one/thiones in excellent yields using sulfonatedβ-cyclodextrine as recyclable catalyst is described.Sulfonatedβ-cyclodextrine was found to be efficient,recyclable heterogeneous catalyst and showed rate enhancements,high yields and short reaction times in this transformation.
An efficient solvent free method for the synthesis of various 3,4-dihydropyrimidin-2 (1H) -one / thiones in excellent yields using sulfonated β-cyclodextrine as recyclable catalyst is described. Sulfonated β-cyclodextrine was found to be efficient to recyclable heterogeneous catalyst and showed rate enhancements, high yields and short reaction times in this transformation.