Regioselective functionalization of 2-(2′-fluorophenyl)-3-cyanopyridine and its cyclization to benzo[h]-1,6-naphthyridines
作者:Thomas Cailly、Mikael Begtrup
DOI:10.1016/j.tet.2009.12.017
日期:2010.2
Benzo[h]-1,6-naphthyridines and 5-ones, selectively functionalized at C-2, C-3, C-5 and C-10, were obtained by alkyllithium-, lithium amide- or potassium hydroxide-induced anionic cyclization of 3-cyano-2-(2-fluorophenyl)pyridine, which was functionalized regioselectively at positions 4, 5, 6, and 6′.
通过烷基锂,酰胺锂或氢氧化钾诱导的阴离子环化反应,在C-2,C-3,C-5和C-10上选择性官能化的苯并[ h ] -1,6-萘啶和5-酮制备3-氰基-2-(2-氟苯基)吡啶,其在位置4、5、6和6'上被区域选择性地官能化。