1: 21 percent / PPA / 10 h / 100 °C 2: 71 percent / DDQ / benzene / 36 h / Heating View Scheme
参考文献
Ahluwalia, V. K.; Adhikari, Raju; Singh, R. P.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1987 , vol. 26, # 1-12 p. 229 - 231
