Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur halides
Patent
1990-02-13
1990-10-09
Reamer, James H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur halides
C07C30302
Patent
active
049622820
ABSTRACT:
Preparation of fluorooxy-fluorosulfonyl-fluorocompounds by means of the direct fluorination with elemental fluorine of various .beta.-sultones according to the following reaction scheme: ##STR1## wherein R.sub.1 and R.sub.2, which can be either equal to, or different from, each other, represent a fluorine or chlorine atom, or an alkyl radical partially or totally halogenated with fluorine and/or chlorine.
The reaction takes place in continuous in the presence of a fluorination catalyst, preferably constituted by an alkali-metal fluoride preferably supported on a metal material, at temperatures comprised within the range of from -30.degree. C. to +100.degree. C., and under the pressure comprised within the range of from 50 to 800 kPa; said catalyst is a fixed-bed catalyst, or is suspended in a reaction medium inert under the operating conditions.
REFERENCES:
patent: 3041317 (1962-06-01), Gibbs et al.
patent: 3714245 (1973-01-01), Beckerbauer
patent: 3718627 (1973-02-01), Grot
patent: 4476058 (1984-10-01), Millauer et al.
patent: 4801409 (1989-01-01), Marraccini et al.
Marraccini Antonio
Perego Gabriele
Ausimont S.r.l.
Reamer James H.
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