化学合成。
化学合成
合成路线 1(1. 合成:162318-34-5)
产率:95%
合成条件:With potassium hydroxide In tetrahydrofuran; methanol at 20℃; for 6 h; Inert atmosphere
实验步骤:将5 - [(三甲基甲硅烷基)乙炔基] -2,2'-联吡啶(0.360g,1.43mmol)溶于30mL THF(在N 2下脱气)。 然后加入KOH(0.320g,5.72mmol)的甲醇(30mL)溶液。 将反应在室温下搅拌6小时,并在真空下除去溶剂。 通过快速硅胶柱色谱法纯化残余物,使用CH 2 Cl 2作为洗脱剂。 产率:95%(245mg),TLC(SiO 2):Rf 0.45(10%甲醇/二氯甲烷); IR(KBr,cm -1)3298(C≡CH),3190(C≡CH),3049(Ar-H),3001(Ar-H),2964(Ar-H),2933(Ar-H), 2096(C≡C),1H NMR(400MHz,CDCl3)δ3.29(s,1H,C≡CH),7.26-7.33(m,1H,PyH),7.79-7.84(m,1H,PyH),7.88 -7.90(m,1H,PyH),8.37-8.41(m,2H,PyH),8.67-8.69(m,1H,PyH),8.77(m,1H,PyH); MS / EI m / z 180 [M +,100%] 153 [M + -NCH,48%],126 [M + -2(NCH),9%]。
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