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Synthesis of hydroxy-6H-benzofuro[3,2-c] [1]benzopyran-6-ones

โœ Scribed by H. L. McPherson; B. W. Ponder


Book ID
112123839
Publisher
Journal of Heterocyclic Chemistry
Year
1976
Tongue
English
Weight
192 KB
Volume
13
Category
Article
ISSN
0022-152X

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An efficient conversion of catechols int
โœ Davood Nematollahi; Davood Habibi; Abdolhamid Alizadeh; Mahdi Hesari ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 68 KB

Coupling of in-situ generated o-benzoquinones with 4-hydroxycoumarin as a nucleophile has been studied in the presence of potassium ferricyanide as an oxidizing agent in aqueous solution. The results indicate that the quinones derived from catechols, participate in Michael addition reactions with 4-