A. Miloudi et al., SYNTHESIS OF INDENONE BY SELF-CONDENSATION OF 1-ACETYL-2-METHYLCYCLOPENTENE AND SUBSEQUENT UNUSUAL AUTOXIDATION, Tetrahedron, 52(29), 1996, pp. 9785-9792
Potassium tert-butoxide induced self-condensation of 1-acetyl-2-methyl
-cyclopentene leads to -methylcyclopent-1'-enyl)bicyclo[4.3.0]non-3-en
-2- one 2 in 35% yield when one equivalent of dimethyl sulfate is adde
d. Dienone 2 undergoes facile autoxidation leading to the correspondin
g epoxide 12 and triketone 13. Copyright (C) 1995 Elsevier Science Ltd
.