可以制备[羟基(磺酰氧基)碘]全氟烷烃(C n F 2n + 1 I + OH - OSO 2 R,n = 3、4、6 ; R = p -CH 3 C 6 H 4,CF 3)。由相应的全氟烷基碘分两步进行反应,方法是用全三氟乙酸氧化,然后与TsOH或Me 3 SiOTf反应。这些化合物在温和的条件下与芳族化合物的三甲基甲硅烷基衍生物反应,以高收率形成相应的全氟烷基(芳基)碘鎓盐。
A General and Convenient Preparation of [Bis(trifluoroacetoxy)iodo]perfluoroalkanes and [Bis(trifluoroacetoxy)iodo]arenes by Oxidation of Organic Iodides Using Oxone and Trifluoroacetic Acid
作者:Aleksandra A. Zagulyaeva、Mekhman S. Yusubov、Viktor V. Zhdankin
DOI:10.1021/jo902733f
日期:2010.3.19
[Bis(trifluoroacetoxy)iodo]perfluoroalkanes CnF2n+1I(OCOCF3)2 (n = 4, 6, 8, 10, 12) can be conveniently prepared by the oxidation of the corresponding perfluoroalkyl iodides with Oxone in trifluoroacetic acid at room temperature and subsequently converted to the stable [hydroxy(tosyloxy)iodo]perfluoroalkanes, CnF2n+1I(OH)OTs, by treatment with p-toluenesulfonic acid. This general and convenient procedure
[双(三氟乙酰氧基)碘]全氟烷烃C n F 2 n +1 I(OCOCF 3)2(n = 4、6、8、10、12 )可以方便地通过在三氟乙酸中用过氧化物氧化相应的全氟烷基碘化物来制备。然后在室温下用对甲苯磺酸处理,将其转化为稳定的[羟基(甲苯磺酰氧基)碘]全氟烷烃C n F 2 n +1 I(OH)OTs 。该通用且方便的方法已进一步扩展到各种[双(三氟乙酰氧基)碘]芳烃ArI(OCOCF 3)2的合成。