Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1992-05-14
1992-12-29
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
570178, 570179, 570180, C07C 1720, C07C 1738, C07C 1908
Patent
active
051753804
ABSTRACT:
Mixtures of perfluorinated alkyl bromides or alkylene dibromides containing perfluorinated iodine compounds are irradiated with electromagnetic radiation in the wavelength range from 230 to 500 nm and brought into contact, either during the irradiation or directly thereafter, with at least one of the following agents: active charcoal, certain finely divided metals, lower aliphatic alcohols, chlorine, bromine, oxygen, hydrogen peroxide, aqueous or alcoholic solutions of alkali metal compounds with certain inorganic anions or lower aliphatic alcohols. After removal of the agent and if appropriate distillation, products which contain less than 0.0005% by weight of iodine compounds and can be employed, for example, in the medical sector can be obtained.
REFERENCES:
patent: 4801763 (1989-01-01), Maul et al.
patent: 5051535 (1991-09-01), von Werner
patent: 5073651 (1991-12-01), Raab
patent: 5113026 (1992-05-01), Raab
Haszeldine, R. N., J. Chem. Soc.: pp. 3761-3768 (1953).
Huang, B., et al., Chem. Abs. 102:78304, No. 78312x (1985).
Hoechst Aktiengesellschaft
Siegel Alan
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