反应条件
1: 34 percent / KOH / ethanol / 5 h / Heating 2: 76 percent / 90percent H2O2, maleic anhydride / CH2Cl2 / 1) r.t., overnight, 2) reflux, 2 h 3: 1 h / Heating 4: 10percent KOH / methanol / 1 h / Heating View Scheme
参考文献
Ohta, Akihiro; Watanabe, Tokuhiro; Akita, Yasuo; Yoshida, Maki; Toda, Suzumi; et al.
Journal of Heterocyclic Chemistry, 1982 , vol. 19, p. 1061 - 1067