化学合成。
化学合成
合成路线 1(1. 合成:400777-06-2)
产率:86%
合成条件:With iodine; silver sulfate In ethanol at 20℃;
实验步骤:步骤a:6-氯-2-碘 - 吡啶-3-基胺向6-氯 - 吡啶-3-基胺(10.0g,77.8mmol)的EtOH(150mL)溶液中加入Ag 2 SO 4(12.1g,38.9) 室温下,mmol)和I 2(23.7g,93.4mmol)。 将混合物在20℃搅拌过夜。 通过真空蒸发除去溶剂。 将水(100mL)和EtOAc(200mL)加入到残余物中。 分离有机层,水层用EtOAc(100mL×3)萃取。 合并的有机层经无水Na 2 SO 4干燥,真空蒸发,得到粗产物,将其通过硅胶柱色谱纯化(石油醚/乙酸乙酯7:1),得到6-氯-2-碘 - 吡啶 - 3-三胺(17.1g,86%)。 1 H NMR(DMSO,300MHz)δ7.16(d,J = 8.4Hz,1H),7.01(d,J = 8.4Hz,1H),5.57(s,2H)。
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