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A facile synthesis of 3-aryl-4-hydroxycoumarins

✍ Scribed by Derek H.R. Barton; Dervilla M.X. Donnelly; Jean-Pierre Finet; Patrick J. Guiry

Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
196 KB
Volume
30
Category
Article
ISSN
0040-4039

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A new synthesis of 3-aryl-4-hydroxycouma
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## Abstract In the course of an investigation into the synthesis and properties of 3‐aryl‐4‐hydroxycoumarins a new direct synthesis of these compounds was found. In an acid medium 4‐hydroxycoumarin can be coupled directly to a diazotized aniline to form the desired 4‐hydroxycoumarin derivative.