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Functionalization of iodopolyfluoroalkanes by electrochemical reduction and new fluorinated compounds thereby obtained
Functionalization of iodopolyfluoroalkanes by electrochemical reduction and new fluorinated compounds thereby obtained
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机译:通过电化学还原将碘多氟烷烃官能化,从而获得新的氟化化合物
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摘要
The invention relates to the preparation of functionalized derivatives from iodopolyfluoroalkanes by electrochemical reduction. This reduction is carried out in a formamide or substituted formamide solvent which may contain up to 70% (by volume) water, on a carbon cathode; for certain embodiments sulfur dioxide may also be present. This method of preparing perfluoroalkanecarboxylic acids R.sub.F COOH or perfluoroalkanesulphinic acids, R.sub.F SO.sub.2 H and alcohols of the R. sub.F C.sub.2 H.sub.4 OH type, also makes it possible to prepare new fluorinated compounds of formulae: I--(CH.sub.2).sub.p-1 --COOH and HO. sub.2 S--(CF.sub.2).sub.p-1 --COOH, in which p is an even-numbered integer which may range from 4 to 12.
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机译:本发明涉及通过电化学还原从碘多氟烷烃制备官能化衍生物。这种还原反应是在碳阴极上的甲酰胺或取代的甲酰胺溶剂中进行的,该溶剂可能含有至多70%(按体积计)的水。对于某些实施方案,也可以存在二氧化硫。制备全氟链烷羧酸RCO COOH或全氟链烷磺酸RSO 2 H和R C 2 H 4 OH型醇的方法可以制备新的式I-(CH.sub.2).p-1 -COOH和HO的氟化化合物。 sub.2 S-(CF.sub.2)sub.p-1 --COOH,其中p是偶数整数,范围为4到12。
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