| 摘要 |
<p>The invention relates to a process for preparing CF 3 CH=CHF and CF 3 CF=CH 2 , wherein CF 3 CF=CH 2 is prepared by dehydrohalogenating a compound of formula CF 3 CFYCH 3 or CF 3 FHCYH 2 , wherein Y is F, Cl, Br, or I, in the presence of a base.</p> |
