Multicomponent condensation of 6-acetyl-5,7-dihydroxy-4-methylchromen-2-one with aldehydes and Meldrum´s acid

被引：0
|
作者：
B. V. Lichitsky
S. V. Shorunov
A. O. Osipov
A. N. Komogortsev
A. A. Dudinov
M. M. Krayushkin
机构：
[1] Russian Academy of Sciences,N. D. Zelinsky Institute of Organic Chemistry
来源：
Russian Chemical Bulletin | 2017年 / 66卷
关键词：
multicomponent condensation; Meldrum´s acid; 7-hydroxycoumarins; 6-acetyl-5,7-dihydroxy-4-methylchromen-2-one; 6-acetyl-10-aryl-5-hydroxy-4-methyl-9,10-dihydropyrano[2,3-; ]chromene-2,8-diones; methyl 3-(6-acetyl-5,7-dihydroxy-4-meth-yl-2-oxo-2; -chromen-8-yl)-3-arylpropionates;
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学科分类号：
摘要：
Previously unknown 6-acetyl-10-aryl-5-hydroxy-4-methyl-9,10-dihydropyrano[2,3-f]-chromene-2,8-diones were synthesized by multicomponent condensation of 6-acetyl-5,7-dihydroxy-4-methylchromen-2-one, aromatic aldehydes, and Meldrum´s acid. A fundamen-tal possibility of interconversion of substituted 6-acetyl-10-aryl-5-hydroxy-4-methyl-9,10-dihydropyrano[2,3-f]chromene-2,8-diones and methyl 3-(6-acetyl-5,7-dihydroxy-4-meth-yl-2-oxo-2H-chromen-8-yl)-3-arylpropionates was demonstrated.
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页码：886 / 890
页数：4
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