[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。
[Hydroxy(sulfonyloxy)iodo]perfluoroalkanes - new hypervalent iodine species and promising reagents for organic synthesis
作者:Viktor V. Zhdankin、Chris Kuehl
DOI:10.1016/s0040-4039(00)73166-2
日期:1994.3
(CnF2n+1I+OH⊎−OSO2R, n = 3, 4, 6; R = p-CH3C6H4, CF3) can be prepared in two steps from the corresponding perfluoroalkyliodides by oxidation with pertrifluoroacetic acid and subsequent reaction with TsOH or Me3SiOTf. These compounds react with trimethylsilyl derivatives of aromatic compounds under mild conditions forming the corresponding perfluoroalkyl(aryl)iodonium salts in good yield.
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。