期刊
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
卷 10, 期 2, 页码 307-317出版社
SPRINGER
DOI: 10.1007/s13738-012-0160-x
关键词
Pyrimidine-2,4-dione; Benzo[g] chromene; Dihydropyrano[2,3-g] chromene; Aqueous media
资金
- Research Council of Shahid Beheshti University
In this work, functionalized pyrimidine-2,4-dione-, benzo[g]-, and dihydropyrano[2,3-g]chromene derivatives have been synthesized via a Michael addition of 2-hydroxy-1,4-naphthoquinone or 2,5-dihydroxy-1,4-benzoquinone to the Knoevenagel condensation product of an aldehyde with Meldrum's acid, dimedone or barbituric acid in the presence of a catalytic amount of l-proline under refluxing conditions in water in good to excellent yields.
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