反应条件
pyridine; phosphorus tribromide in diethyl ether 1) overnight, r.t., then 2 h, reflux.;
参考文献
Vig, O. P.; Sharma, M. L.; Kumari, Sarla; Vohra, Neelam
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1985 , vol. 24, p. 962 - 964