A concise synthesis of 2, 4-disubstituted pyridines: A convenient synthesis of 2-bromo-4-iodopyridine via halogen dance and its successive one-pot disubstitutions

XF Duan, XH Li, FY Li, CH Huang

Index: Duan, Xin-Fang; Li, Xiang-Hong; Li, Fu-You; Huang, Chun-Hui Synthesis, 2004 ,  # 16  p. 2614 - 2616

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Abstract

Abstract As a key building block for 2, 4-disubstituted pyridines, 2-bromo-4-iodopyridine was synthesized conveniently from 2-bromopyridine using LDA and I 2 via 'halogen dance'. 2- Bromo-4-iodopyridine was then converted to other 2, 4-diaryl pyridines and 4-aryl-2, 2′- bipyridines in one-pot reactions.