Photochemical Behavior of Indane-1, 2, 3-trione in Degassed Alcoholic Solutions : Formation of 3-Substituted Phthalides
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