Synthesis of novel tetra- and pentacyclic benzosultam scaffolds via domino Knoevenagel hetero-Diels–Alder reactions in water

被引:0
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作者
Mehdi Ghandi
Shahab Sheibani
Masoud Sadeghzadeh
Fariba Johari Daha
Maciej Kubicki
机构
[1] University of Tehran,School of Chemistry, College of Science
[2] Radioisotope Research Group,Faculty of Chemistry
[3] NSTRI,undefined
[4] Adam Mickiewicz University in Poznan,undefined
关键词
Domino Knoevenagel hetero-Diels–Alder; Dihydropyrano[3,2-; ]chromen-5-ones; Dihydropyranopyrimidines; Benzosultams;
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摘要
An efficient catalyst-free and diastereoselective synthesis of novel dihydropyrano[2,3-d]pyrimidine and dihydropyrano[3,2-c]chromen-annulated benzosultams is described. A number of (E)-N-(2-formylphenyl)-N-methyl-2-phenylethenesulfonamides were synthesized and underwent a one-pot domino Knoevenagel hetero-Diels–Alder reaction, respectively, with N,N-dimethylbarbituric acid and 4-hydroxycoumarin in water, giving the desired products, in moderate to excellent yields.
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页码:1057 / 1065
页数:8
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