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Pyrimidines-19: Ring transformation of 5-nitrouracil into nitroresorcinols

โœ Scribed by T.-L. Su; K.A. Watanabe; J.J. Fox

Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
327 KB
Volume
38
Category
Article
ISSN
0040-4020

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A novel ring transformation of 5-nitrour
A novel ring transformation of 5-nitrouracils into 5-carbamoyluracils via the retro-michael reaction
โœ Kosaku Hirota; Yukio Kitade; Shigeo Senda ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 118 KB

Treatment of 1,3-disubstituted 5-nitrouracils(5) with malonamide in ethanolic sodium ethoxide caused a ring transformation to afford l-substituted 5-carbamoyluracils(6) in good yields. Reactions of uracil derivatives with various nucleophiles have been extensively investigated in connection with bio