Versatile and chemoselective synthesis of fluorinated methyl ethers from methoxymethyl ethers
作者:Reiya Ohta、Yuichi Kuboki、Yuki Yoshikawa、Yasuyuki Koutani、Tomohiro Maegawa、Hiromichi Fujioka
DOI:10.1016/j.jfluchem.2017.07.007
日期:2017.9
developed for the synthesis of aliphatic fluorinated methyl ethers (ROCH2RF), specifically monofluoromethyl ethers (ROCH2F) and trifluoromethylthiomethyl ethers (ROCH2SCF3), through pyridinium-type salt intermediates derived from methoxymethyl (MOM) ethers. The addition of a fluorine source (F− or SCF3−) to the pyridinium-type salts afforded the corresponding fluorinated methyl ethers in good yields under
通过衍生自甲氧基甲基的吡啶鎓盐类中间体,已开发出一种通用的化学选择路线,用于合成脂族氟化甲基醚(ROCH 2 R F),特别是一氟甲基醚(ROCH 2 F)和三氟甲基硫代甲基醚(ROCH 2 SCF 3)。 (MOM)醚。加入氟源的(F -或SCF 3 - )的吡啶鎓盐型得到良好的收率相应的氟化甲基醚温和的条件下。值得注意的是,单氟甲基醚的合成仅在5分钟内即可完成。