Inorganic Chemistry p. 1697 - 1701 (1976)
Update date:2022-08-04
Topics: Reactions
Sharp, Kenneth G.
Schwager, Irving
The interactions of tetrafluoroethylidene with three fluorine-containing phosphines have been investigated. The source of the carbene is the pyrolytic decomposition of C2F5SiF3 at 200°C. The reaction of CF3CF with PF3 generates CF2=CFPF4 and PF5; reaction with (CF3)3P leads to (CF3)2PCF(CF3)2; and reaction with (CF3)2PCF(CF3)2 produces the fluorocarbon (CF3)2CFCF(CF3)2. The possibility that the vinylphosphorane product of the PF3 reaction results from fluorine-transfer rearrangement of C2F5PF2 as an intermediate product was discredited by a demonstration that C2F5PF2 is thermally stable under the reaction conditions. Other mechanistic pathways are discussed.
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