反应条件
1: 2.) triethylamine / 1.) DMF, o deg C, 2.) DMF, 10 deg C, 4 h 2: 2.) sodium ditionate / 1.) methanol, 50 deg C, 2 h, 2.) ethanol, water, 50 deg C, 3 h 3: 1.) 35percent HCl, acetic acid, 2.) sodium nitrite / 1.) 4 deg C, 20 min, 2.) water, RT, 6 h 4: 90 percent / hydrazine hydrate / 1 h / Heating 5: 1.) 6N HCl, 2.) sodium nitrite / 1.) 0 deg C, 2.) water, 60 min View Scheme
参考文献
Monge; Palop; Pinol; Martinez-Crespo; Narro; Gonzalez; Sainz; Lopez De Cerain; Hamilton; Barker
Journal of Heterocyclic Chemistry, 1994 , vol. 31, # 5 p. 1135 - 1139
