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Synthesis of naphthalenes using acid-catalyzed ring-opening and recyclization of 3-acetyl-5,5-diaryl-2-methyl-4,5-dihydrofurans. Isolation of intermediates

✍ Scribed by Shougo Kajikawa; Hiroshi Nishino; Kazu Kurosawa


Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
95 KB
Volume
42
Category
Article
ISSN
0040-4039

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A convenient procedure for the preparation of carbamate derivatives of 5-oxo-2,5-dihydrofuran (3) was described. The method is based on the Michael type addition of three alkyl carbamates (2) with 4-acetyl-5methyl-2,3-dihydro-2,3-furandione (1). According to 1 H nmr spectra of compounds show tautome