| 摘要 |
1290605 Perfluoro-olefins THIOKOL CHEMICAL CORP 8 Sept 1970 [1 Oct 1969] 43039/70 Heading C2C Perfluoro-olefins are prepared by reaction of a perfluoro-alkyl halide containing at least two carbon atoms and one or more chlorine, bromine or iodine atoms with an alkyl or aryl magnesium chloride, bromide, or iodide at - 60‹ to 200‹ C. |
