The thermal decarboxylation of previously unknown γ-fluorosulfonyl perfluoro-butanoic acid derivatives and a novel method for the synthesis of perfluorinated cyclic sulfones are described. For the first time, parallel processes of decarboxylation and desulfonylation in one molecule were observed. In addition, the reversibility of the alkaline alcoholysis of perfluorocarbonyl fluorides and the possibility of their generation by the reaction of alkali metal carboxylates with inorganic fluorides under higher temperatures are presented. The reaction conditions, factors affecting reactivity and regioselectivity of the thermolysis process, as well as the pathways of main and side reactions are discussed.

描述了以前未知的γ-氟磺酰基全氟丁酸衍生物的热脱羧和一种合成全氟环砜的新方法。首次观察到一个分子中脱羧和脱磺酰基的平行过程。另外，还提出了全氟羰基氟化物的碱性醇解反应的可逆性，以及在高温下碱金属羧酸盐与无机氟化物反应生成它们的可能性。讨论了反应条件，影响热解反应的反应性和区域选择性的因素，以及主要反应和副反应的途径。