SYNTHESIS OF BENZOFURANOFURAN DERIVATIVES: MODEL OF NATURAL PRODUCTS

• Published in: Synthetic communications Vol. 31; no. 1; pp. 151 - 154
• Main Authors: Donate, Paulo Marcos, da Silva, Rosangela, da Silva, Gil Valdo José, Alemán, Carlos
• Format: Journal Article
• Language: English
• Published: NEW YORK Taylor & Francis Group 01.01.2001; Marcel Dekker Inc
• Subjects: Chemistry; Chemistry, Organic; Physical Sciences; Science & Technology; COUMARIN; 2 CYCLO-ADDITIONS; MICROMELUM-MINUTUM

Several benzofuranofuran derivatives were synthesized employing intramolecular cycloaddition reactions of ketenes with alkenes. (Alkenyloxy)ketenes, prepared from the tosylate by treatment with triethylamine, easily undergo intramolecular [2 + 2] cycloaddition to give tricyclic benzocyclobutafuranon...