| 摘要 |
<p>The present invention relates to a process for preparing fluorinated conjugated olefinic products having, among others, the formulae: <IMAGE> wherein: Rx and Ry represent, among others, perhaloalkyl radicals containing from 1 to 10 carbon atoms (in the case of Rx) and from 1 to 9 carbon atoms (in the case of Ry), and m ranges from 2 to 10. These olefinic products are obtained by reacting telomeric products having, among others, the formulae: RxO-(CFCl-CFCl)m-F RxO-(CFCl-CFCl)m-ORx F-(CFCl-CFCl)m-F and Ry-(CFCl-CFCl)m-F with zinc powder at temperatures of from about 40 DEG C to about 160 DEG C and in a solvent selected from alcohols, dimethylformamide and dimethylsulfoxide. Many of the resulting products are new.</p> |
