化学合成。
化学合成
合成路线 1(1. 合成:116986-13-1)
产率:65%
合成条件:With N-Bromosuccinimide In tetrachloromethane for 16 h; Reflux
实验步骤:实施例75; N-Cl-氯-S-Cl - 萘啶-δ-γ-吡啶-S-基) - 氟苯磺酰胺; (1)3-(溴甲基)吡啶甲腈。 (一些起始材料可以从TCI America,Wellesley,MA获得)向100mL圆底烧瓶中加入3-甲基吡啶甲腈(2.36g,20.0mmol),NBS(7.82g,43.9mmol)和CCl 4(50mL)。)。 将反应混合物在回流下搅拌16小时。 将混合物冷却至室温。 过滤固体,用50%EtOAc /己烷洗涤。 真空除去溶剂,残余物通过硅胶色谱法纯化,用30%EtOAc /己烷洗脱,得到3-(溴甲基)吡啶-2-甲腈(2.56g,65.0%收率)。 MS(ESI pos.ion)m / z CvH5BrN2的计算值:196.0,198.0;实测值:196.0。 发现197.0,199.0。 1H NMR(300MHz,氯仿 - ; /)δppm4.64(s,2H)7.54(dd,J = 8.04,4.68Hz,1H)7.92(dd,J = 8.04,1.61Hz,1H)8.66( dd,J = 4.75,1.53 Hz,1 H)
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