Process for preparation of substantially fluorinated alkyl bromi

Details Process for preparation of substantially fluorinated alkyl bromi Process for preparation of substantially fluorinated alkyl bromi

1991-06-11

1992-05-12

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1720

Patent

active

051130262

ABSTRACT:
A process for the preparation of substantially fluorinated alkyl bromides from the corresponding iodides is described. At least one anhydrous metal bromide, which can contain certain metals as the cation, is reacted at 80.degree. to 450.degree. C. under atmospheric pressure or the autogenous pressure of the reaction mixture and with good mixing, with the substantially fluorinated alkyl iodide, without the addition of other substances. The new process achieves good yields of substantially fluorinated alkyl bromides and requires no special safety precautions.

REFERENCES:
patent: 2678953 (1954-05-01), Conly
patent: 2875253 (1959-02-01), Barnhart
Haszeldine, R. N., J. Chem. Soc.:3761-3768 (1953).
Lond, D. M. et al., Preparation, Properties anad Industrial Applications of Organofluorine Compounds, N.Y., John Wily and Sons, 1982, p. 154.
Huang, B., et al., Chem. Abs. 102:78312x (1985).
Furutaka, Y., et al., Chem. Abs. 104:88106p (1986).

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