1: With pyridinium p-toluenesulfonate in 1,2-dichloro-ethane T=80°C; 20 h; 2: With triethylamine in dichloromethane T=20°C; 6 h; 3: With trifluoroacetic acid in methanol; dichloromethane T=140°C; 0.0666667 h; microwave irradiation; Further stages.;
参考文献
Buszek, Keith R.; Brown, Neil
Journal of Organic Chemistry, 2007 , vol. 72, # 8 p. 3125 - 3128