Ni-Catalyzed Alkenylation of Triazolopyridines: Synthesis of 2,6-Disubstituted Pyridines
作者:Sheng Liu、James Sawicki、Tom G. Driver
DOI:10.1021/ol301606y
日期:2012.7.20
A synthetic strategy to access 2,6-disubstituted pyridines from triazolopyridines through a regioselective nickel-catalyzed alkenylation reaction of the C7–H bond is described. The N2 fragment embedded in the resulting C–H functionalized triazolopyridine can be readily excised using acidic or oxidative conditions to unmask the pyridine.
描述了通过区域选择性镍催化的C7–H键烯基化反应从三唑并吡啶获得2,6-二取代吡啶的合成策略。可以使用酸性或氧化性条件轻易地切除嵌入到C–H官能化的三唑并吡啶中的N 2片段,从而使吡啶不被掩盖。