用于后续反应(具体用途未明确说明,基于文献及专利引用推测为医药中间体)
医药
合成路线 1(1. 合成:112434-18-1)
产率:93%
合成条件:With pyridine In dichloromethane at 20℃;
实验步骤:向250mL圆底烧瓶中加入2,4-二氟苯胺(11,4.62mL,45.4mmol),DCM(103mL)和吡啶(7.40mL,91mmol)。 将溶液在室温下搅拌并通过加料漏斗用氯甲酸苄酯(8.15mL,54.5mmol)逐滴处理。在室温下搅拌过夜后,将混合物倒入水中并用DCM萃取。 合并的萃取液用水,盐水洗涤,用无水硫酸钠干燥,过滤,浓缩,得到标题化合物(11.1g,42.2mmol,93%),为白色固体,无需进一步纯化即可使用。 LCMS(ESI,阳离子)计算值C 14 H 11 F 2 NO 2:263.1;实测值:263.1。 实测值:286.1(M + Na)。 1H NMR(400MHz,DMSO-d6)d ppm 9.43(br s,1H),7.51-7.66(m,1H),7.24-7.46(m,6H),7.01-7.12(m,1H),5.15(s,2H)。
参考文献:
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