Easy and effective preparations of the nearly pure [bis(trifluoroacetoxy)-iodo]arenes, ArI(OCOCF)3, from some iodoarenes, ArI, are reported, using an anhydrous sodium percarbonate/(CF3CO)2O/CH2Cl2 system. The colorless, freshly prepared ArI(OCOCF3)2 thus obtained were 98-99% pure (by iodometry).
据报道,使用无
水过
碳酸钠/(CF3CO)2O/
CH2Cl2体系,可以从一些
碘芳烃ArI中轻松有效地制备出几乎纯的[双(三
氟乙酰氧基)-
碘]
芳烃ArI(OCOCF)3。 因此,新鲜制备的无色ArI(OCOCF3)2的纯度为98-99%(通过
碘量法)。