Trifluoromethyl ethers R-OCF3 are easily synthesized from the corresponding dithiocarbonates R-OCS2Me (R = aryl or primary alkyl) by a reagent system consisting of 70% HF/pyridine and an N-halo imide. When the reaction is applied to R-OCS2Me wherein R = secondary alkyl, tertiary alkyl, or benzylic group, fluorination leading to the corresponding alkyl fluorides R-F is achieved, whereas a combination
三
氟甲基醚 R-OCF3 很容易从相应的二
硫代
碳酸酯 R-OCS2Me(R = 芳基或伯烷基)通过由 70% HF/
吡啶和 N-卤代
酰亚胺组成的试剂系统合成。当反应应用于 R-OCS2Me 时,其中 R = 仲烷基、叔烷基或苄基,实现了产生相应烷基
氟化物 RF 的
氟化,而 50% HF/
吡啶和 N-
溴代琥珀
酰亚胺的组合提供相应的三
氟甲基醚 R-OCF3(R = 次要)。