3-Fluoro-2,6-dimethyl-5-nitropyridine 、
N-溴代丁二酰亚胺(NBS) 、
偶氮二异丁腈 在
crude product 、 silica gel 、
环己烷 、
乙酸乙酯 、
2-(bromomethyl)-3-fluoro-6-methyl-5-nitropyridine 作用下,
以
四氯化碳 为溶剂,
反应 5.0h,
以to obtain a mixture (0.55 g) of 2-(bromomethyl)-5-fluoro-6-methyl-3-nitropyridine and 2-(bromomethyl)-3-fluoro-6-methyl-5-nitropyridine at an approximate ratio of 1:1 as oily matter, which的产率得到2-(bromomethyl)-5-fluoro-6-methyl-3-nitropyridine