反应条件
1: 65 percent / fuming sulphuric acid (60percent SO3)/sulphur / 1.) 1 h, 2.) 50 deg C, 10 min, 3.) room temp., 18 h
2: 1.) sodium nitrite, NaOH, aq. HCl, 2.) CuCl, aq. HCl / 1.) water, 2.) 60 deg C, 10 min; 100 deg C, 30 min; room temp., 24 h
View Scheme
参考文献
Farina; Martinez-Utrilla; Paredes; Stefani
Synthesis, 1985 , vol. NO. 8, p. 781 - 784