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Synthesis of fused uracils: pyrano[2,3-d]pyrimidines and 1,4-bis(pyrano[2,3-d]pyrimidinyl)benzenes by domino Knoevenagel/Diels-Alder reactions
ABSTRACT: Knoevenagel condensation of barbituric acids with aromatic aldehydes containing one or two formyl groups was carried out. 5-Arylidenebarbituric acids underwent smooth hetero-Diels-Alder (HDA) reactions with enol ethers to afford cis and trans diastereoisomers of pyrano[2,3-d]pyrimidine-2,4...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Springer Vienna
2012
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4495049/ https://www.ncbi.nlm.nih.gov/pubmed/26166870 http://dx.doi.org/10.1007/s00706-012-0781-x |