Method for synthesizing TFPX

Details Method for synthesizing TFPX Method for synthesizing TFPX

2007-02-06

2007-02-06

Price, Elvis O. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C570S143000, C570S144000

Reexamination Certificate

active

11189710

ABSTRACT:
A method for the synthesis of TFPX (α, α, α′, α′-tetrafluoro-p-xylene) is disclosed, which comprises the following steps: (a) providing a sulpholane solution comprising TCPX (α, α, α′, α′-tetrachloro-p-xylene); (b) mixing the sulpholane solution with alkali metal fluoride, and phase transfer catalyst to form a mixture, wherein the phase transfer catalyst is quaternary phosphonium salt; and (c) heating the mixture.

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