反应条件
1: 74 percent / SOCl2 / pyridine / r.t., 1h then 80 degC, 15min. 2: 73 percent / conc. HCl, Fe (filings) / ethanol / 2 h / Heating 3: 50 percent / DDQ / xylene / 2 h / Heating View Scheme
参考文献
Girgis; Cottam; Robins
Journal of Heterocyclic Chemistry, 1988 , vol. 25, # 2 p. 361 - 373