申请人:Asahi Glass Company Ltd.
公开号:US04116977A1
公开(公告)日:1978-09-26
An oxygen-containing cyclicfluoro compound selected from the group consisting of a perfluorolactone having the formula ##STR1## a perfluorocyclic ether having the formula ##STR2## and mixtures thereof is produced by reacting an .alpha.,.omega.-diiodoperfluoroalkane having the formula I (CF.sub.2).sub.n I with fuming sulfuric acid, wherein n is all formulas ranges from 3 to 5.
一种含氧环氟化合物,选自由下列组成的群体:具有公式##STR1##的全氟内酯,具有公式##STR2##的全氟环醚以及它们的混合物,通过将具有公式I(CF2)nI的α,ω-二碘全氟烷与浓硫酸反应制得,其中n的所有公式范围从3到5。