Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-11-28
1991-10-08
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549520, C07D30129, C07D30124
Patent
active
050556010
ABSTRACT:
A process for epoxidation of a fluoro-olefin is disclosed. The process comprises epoxidizing a fluoro-olefin represented by the general formula (I): ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3 each represents a substituent selected from (a)--F, (b) a perfluoroalkyl group having 2 to 20 carbon atoms and (c) --CF.sub.2 Y.sup.1, Y.sup.1 may be the same or different and represents a substituent selected from (d) a halogen atom selected from F, Cl, Br and I, (e) --OZ.sup.1 and (f) --Z.sup.1, wherein Z.sup.1 may be the same or different and represents a substituted or unsubstituted hydrocarbon group having not more than 20 carbon atoms, and X.sup.1, X.sup.2, X.sup.3 and Y.sup.1 may be combined with one another to form a cyclic compound, provided that all of X.sup.1, X.sup.2, X.sup.3 and Y.sup.1 do not represent --F; using a hypochlorite dissolved or suspended in an aqueous phase as an oxidizing agent in the presence or absence of an inorganic base. The reaction is performed in a two phase system (aqueous and organic phases) in the presence of at least one phase transfer catalyst selected from (i) quaternary ammonium salts, (ii) quaternary phosphonium salts, (iii) quaternary arsonium salts, (iv) sulfonium salts and (v) lipophilic complexing agents for cations contained in the hypochlorite.
REFERENCES:
patent: 3313829 (1967-04-01), Rosenblatt
patent: 3996259 (1976-12-01), Lee et al.
patent: 4006169 (1977-02-01), Anderson et al.
patent: 4098834 (1978-07-01), Marsh
patent: 4925961 (1990-05-01), Ikeda et al.
Kelly et al., Polymer, "Linear Polymers and Block Copolymers as Solid-Liquid Phase-Transfer Catalysts", 20, pp. 1048-1050 (1979).
I. P . Kolenko et al., Izv Akad. Nauk SSSR, Ser. Khim., (Eng. Trans.), "Fluoro-olefin Oxides", No. 11, pp. 2509-2512 (1979).
Chemical Abstracts 92:65502k, Toke, L., "Polyethylene Glycol Derivatives as Complexing Agents and Phase-Transfer Catalysts", (1980).
Chemical Abstracts, 95:60668v, Koch, H., "Introduction by Experiments to Phase-Transfer Catalysts", (1981).
Gokel, J. Chem. Ed., 55(6), "Phase Transfer Catalysis", pp. 350-354 (1978).
W. Webber et al., J. Chem. Ed., 55(7), "Phase Transfer Catalysts", pp. 429-433 (1978).
J. McIntosh, J. Chem. Ed., 55(4), "Phase Transfer Catalysis Using Quaternary Onium Salts", pp. 235-238 (1978).
C. M. Starks, "Phase Transfer Catalysts", Academic Press, pp. 112-125 (1979).
Aoshima Atsushi
Ikeda Masanori
Miura Morikazu
Asahi Kasei Kogyo K.K.
Raymond Richard L.
Russell Mark W.
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