反应条件
1: 1.) 96percent H2SO4, 3.) K2CO3 / 1.) H2O; 2.) the dried product heating at 235 deg C, 5 h, then H2O, 90 deg C, 15 min 2: 79.9 percent / Fe Pulver, / aq. HCl / 30 h / 90 - 95 °C View Scheme
参考文献
Courtin, Alfred
Helvetica Chimica Acta, 1982 , vol. 65, # 2 p. 546 - 550
