pyridine; phosphorus tribromide in diethyl ether 8 h; Ambient temperature;
参考文献
Vig, O. P.; Trehan, I. R.; Kumari, Sarla; Grewal, M. S:
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 9 p. 784 - 786