化学合成。
化学合成
合成路线 1(1. 合成:74924-94-0)
产率:79%
合成条件:With tin(II) chloride dihdyrate In ethanol for 3 h; Reflux
实验步骤:将溶解在EtOH(3ml)和氯化锡(II)二水合物(2.1g,9.5mmol)中的4-溴-2-硝基萘(240mg,0.95mmol)的混合物回流3小时。 蒸发溶剂,将残余物倒入水中,用乙酸乙酯萃取。 将有机层用无水MgSO 4干燥,过滤并真空浓缩,得到产物(79%,棕色固体)。 1H-NMR(400MHz,CDCl3)δ8.05(d,J = 8.4Hz,1H),7.56(d,J = 8.2Hz,1H),7.39(ddd,J = 8.2,6.8,1.2Hz,1H) ,7.33-7.29(m,1H),7.29(d,J = 2.2 Hz,1H),6.95(d,J = 2.1 Hz,1H),3.83(bs,2H)
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