1: 87 percent / CHCl3 / 1 h
2: 88 percent / conc. HCl / ethanol / 48 h / Ambient temperature
View Scheme
参考文献
Lulle, I. Zh.; Paegle, R. A.; Mazheika, I. B.; Lidak, M. Yu.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 4 p. 439 - 446
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 4 p. 535 - 542