zinc(II) chloride in ethanol
T=170°C; 0.5 h; or with pyridine, 8h, reflux;
参考文献
Agarwal, Rajesh; Chaudhary, Chapla; Misra, V. S.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1983 , vol. 22, # 3 p. 308 - 310