1: 2 h / bath temperature 175 deg C
2: conc. HCl / 7 h / bath temperature 120 deg C
View Scheme
参考文献
Harger, Martin J. P.; Sreedharan-Menon, Ramesh
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1994 , # 22 p. 3261 - 3268