1: 55 percent / 8 h / 120 °C
2: 95 percent / p-toluenesulfonic acid monohydrate / diphenyl ether / 5 h / 220 °C
View Scheme
参考文献
Gonnella, Nina C.; Nakanishi, Hiroshi; Holtwick, Joseph B.; Horowitz, David S.; Kanamori, Keiko; et al.
Journal of the American Chemical Society, 1983 , vol. 105, # 7 p. 2050 - 2055