27913-58-2

基本信息
4-(P-碘苯基)丁酸
4-(P-IODOPHENYL)BUTYRIC ACID
Benzenebutanoic acid, 4-iodo-
4-(p-Iodophenyl)butyric acid >=98%
物理化学性质
制备方法

1821-12-1

27913-58-2
以4-苯基丁酸(20.0g,121.8mmol)为原料,加入高碘酸(H5IO6,5.56g,24.4mmol)、碘(I2,13.30g,52.4mmol)、10M硫酸(H2SO4,5.0mL)、水(36mL)及乙酸(166mL)的混合溶液,于70℃下加热反应19小时。反应完成后,冷却反应混合物并将其蒸发至干。将残余物溶解于乙酸乙酯(EtOAc,300mL)中,依次用硫代硫酸钠(Na2S2O3)水溶液(2×200mL)和饱和食盐水(2×200mL)洗涤,无水硫酸钠(Na2SO4)干燥,过滤后蒸发溶剂,得到黄色固体粗产物。将粗产物在0℃下通过乙酸乙酯/己烷混合溶剂重结晶,得到目标产物4-(对碘苯基)丁酸,为浅黄色固体(15.0g,收率42%)。产物结构经1H NMR(400MHz,CDCl3)确认:δ11.0(宽单峰,1H),7.61(双峰,J = 8.4Hz,2H),6.95(双峰,J = 8.0Hz,2H),2.63(三重峰,J = 7.6Hz,2H),2.38(三重峰,J = 7.6Hz,2H)。
参考文献:
[1] Mendeleev Communications, 2015, vol. 25, # 2, p. 111 - 113
[2] European Journal of Organic Chemistry, 2015, vol. 2015, # 27, p. 5919 - 5924
[3] Patent: US2018/66298, 2018, A1. Location in patent: Paragraph 0172; 0173; 0174
[4] Journal of the American Chemical Society, 1943, vol. 65, p. 1273,1274
[5] Patent: US2348231, 1940,