Photochemical Behavior of Indane-1, 2, 3-trione in Degassed Alcoholic Solutions : Formation of 3-Substituted Phthalides
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Irradiation of indane-1,2,3-trione in degassed alcoholic solutions affords 3-alkoxycarbonylphthalides as the major product together with 3-alkoxyphthalides. 3-Alkoxycarbonylphthalides may be derived from the reaction between alcohols and the spirooxiranone intermediate, generated photochemically by cleavage of the bond between two carbonyl groups of indane-1,2,3-trione <I>via</I> a cyclobutenone biradical derivative.
- Chemistry Letters
Chemistry Letters 1997(2), 177-178, 1997-02
The Chemical Society of Japan