Fluoroalkyl iodide and its production process

Details Fluoroalkyl iodide and its production process Fluoroalkyl iodide and its production process

C - Chemistry, Metallurgy

07

C

C07C 17/278 (2006.01) C07C 19/16 (2006.01)

Patent

CA 2544576

A process for producing a fluoroalkyl iodide as a telomer R f(CF2CF2)n I (wherein R f is a C1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula R f I (wherein R f is as defined above) as a telogen and tetrafluoroethylene (CF2CF2) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.

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