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An efficient conversion of catechols into 6 H ‐benzofuro[3,2‐ c ][1]‐benzopyran‐6‐one derivatives
Author(s) -
Nematollahi Davood,
Habibi Davood,
Alizadeh Abdolhamid,
Hesari Mahdi
Publication year - 2005
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570420218
Subject(s) - chemistry , benzopyran , potassium ferricyanide , oxidizing agent , nucleophile , aqueous solution , 4 hydroxycoumarin , medicinal chemistry , organic chemistry , ferricyanide , catalysis
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‐hydroxycoumarin to form the 6 H ‐benzofuro[3,2‐ c ][1]benzopyran‐6‐one derivatives.