反应条件
1: 1.) HCl gas, 2.) 4 N HCl / 1.) BF3-Et2O, CHCl3, 2.) reflux, 5 min
2: 86 percent / 80percent hydrazine hydrate, KOH / ethane-1,2-diol / 1.) reflux, 1 h, 2.) distilled to raise the temperature to 190 deg C, 3. ) reflux, 3 h
3: 96 percent / acetone; benzene / 1.) 0-5 deg C, 1 h, 2.) RT, 2 h
View Scheme
参考文献
Bosch, Joan; Mauleon, David; Feliz, Miguel; Granados, Ricardo
Journal of Organic Chemistry, 1983 , vol. 48, # 25 p. 4836 - 4841
