Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Linearly Condensed peri-Hydroxy Aromatic Compounds Derived from the Cycloaddition Reaction of Homophthalic Anhydrides with Dienophiles
YASUMITSU TAMURA, AKIMORI WADA, MANABU SASHO, YASUYUKI KITA
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Keywords: tetracyclic compound
JOURNAL FREE ACCESS

1983 Volume 31 Issue 8 Pages 2691-2697

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Abstract
Thermal treatment of homophthalic anhydrides (1 and 2) with various dienophiles (3-12) caused cycloaddition with spontaneous extrusion of carbon dioxide to give the corresponding linearly condensed peri-hydroxy aromatic compounds (13-23) in considerable yields. A possible mechanism for these reactions is proposed.
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© The Pharmaceutical Society of Japan
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