申请人:E. I. Du Pont de Nemours and Company
公开号:US04357282A1
公开(公告)日:1982-11-02
Fluorinated carbonyl compounds are prepared by contacting a fluorinated methyl or ethyl ether containing at least one methoxylated carbon atom-containing group selected from: --CF.sub.2 OR.sup.3, .dbd.CFOR.sup.3, ##STR1## wherein R.sup.3 is CH.sub.3 or C.sub.2 H.sub.5, with a catalyst selected from: SbX.sub.5, TaX.sub.5, NbX.sub.5, AsX.sub.5, BiX.sub.5, TiX.sub.4, ZrX.sub.4, HfX.sub.4, FeX.sub.3, mixtures of SbX.sub.3 and SbX.sub.5, ZM'X'.sub.6, and mixtures of ZM'X'.sub.6 and M'X.sub.5 where X, independently, is F, Cl, Br or I, X' is F or Cl; and Z is H, NO, O.sub.2, alkali metal or NY.sub.4 where Y, independently, is H or alkyl of 1 to 6 carbon atoms, and M' is Sb or As at a temperature of -20.degree. to 200.degree. C.
氟代羰基化合物是通过将含有至少一个含有甲氧基化碳原子基团的氟代甲基或乙基醚与催化剂接触而制备的,所述基团选择自:--CF.sub.2 OR.sup.3,.dbd.CFOR.sup.3,##STR1##其中R.sup.3为CH.sub.3或C.sub.2H.sub.5,所述催化剂选择自:SbX.sub.5,TaX.sub.5,NbX.sub.5,AsX.sub.5,BiX.sub.5,TiX.sub.4,ZrX.sub.4,HfX.sub.4,FeX.sub.3,SbX.sub.3和SbX.sub.5的混合物,ZM'X'.sub.6以及ZM'X'.sub.6和M'X.sub.5的混合物,其中X,独立地,为F,Cl,Br或I,X'为F或Cl;Z为H,NO,O.sub.2,碱金属或NY.sub.4,其中Y,独立地,为1至6个碳原子的H或烷基,M'为Sb或As,在-20℃至200℃的温度下进行。