Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic halides
Patent
1990-02-22
1992-05-26
Cintins, Marianne
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic halides
562824, 562825, 562844, 562845, 562850, 544 98, 546184, 546248, 548566, 548567, 548570, 548571, 548579, 564 1, 564461, 564462, 564463, 564510, 564511, 568 74, 568 75, 568 77, 568589, 568583, 568584, 568587, 568669, 568611, 570170, C07C 5104, C07C 51363, C07C 51377, C07C 4122, C07C20968, C07C20978, C07D20700, C07D26530
Patent
active
051170558
ABSTRACT:
A perfluoroalkyl halogenide represented by the formula: ##STR1## wherein X stands for one element selected from the group consisting of iodine and bromine, R.sub.f for a perfluorohydrocarbon group, n for an integer in the range of 1 to 3, and m for an integer in the range of 1 to 3, provided that n and m satisfy the relationship, n.gtoreq.m, is produced by a method which consists essentially in subjecting a perfluorocarboxylic acid fluoride represented by the formula, ##STR2## wherein R.sub.f and n have the same meanings as defined above, to a thermal reaction with a lithium halogenide represented by XI, wherein X has the same meaning as defined above.
REFERENCES:
patent: 2647933 (1953-08-01), La Zerte et al.
patent: 2704776 (1955-03-01), La Zerte et al.
patent: 3456024 (1969-07-01), Loree
patent: 3535393 (1970-10-01), Bloechl
patent: 4379768 (1983-04-01), Yamabe et al.
Journal of Chemical Society, pp. 584-587, 1951, R. N. Haszeldine, "The Reactions of Metallic Salts of Acids with Halogens. Part I. The Reaction of Metal Trifluoroacetates with Iodine, Bromine, and Chlorine".
Journal of Organic Chemistry, vol. 23, 1958, pp. 2016-2017, C. G. Krespan, "Preparation of Fluoroalkyl Iodides from Fluorinated Acid Chlorides".
Journal of Organic Chemistry, vol. 32, Mar. 1967, pp. 833-834, D. Paskovich et al., "Simplified Method for the Preparation of Fluoroalkyl Iodides".
Asashi Glass Research Report, vol. 32, 1982, pp. 117-129, M. Kato et al., "A New Synthetic Method of Perfluoroalkanephosphonates and Related Compound Preparation".
Journal of Chemical Society, 1961, pp. 3779-3787, R. D. Chambers et al., "Mixtures of Halogens and Halogen Polyfluorides as Effective Sources of the Halogen Monofluorides in Reactions with Fluoro-Olefins".
Journal of Organic Chemistry, vol. 27, May, 1962, pp. 1813-1814, C. G. Krespan, "Synthesis of Fluoroalkyl Iodides".
Journal of Organometallic Chemistry, vol. 57, 1973, pp. 423-433, B. L. Dyatkin et al., "On the Interaction of Perfluoroalkyl Carbanions with Silver Salts".
Journal of American Chemical Society, vol. 73, pp. 4016-4017, T. J. Brice et al., "Fluorocarbon Chemistry. IV. The Preparation and Some Reactions of Silver Undecafluorocyclohexanecarboxylate", 1951.
Journal of American Chemical Society, vol. 74, 1952, pp. 848-851, M. Hauptschein et al., "Perfluoroalkyl Halides Prepared from Silver Perfluoro-Fatty Acid Salts. III. 1,3-Dibromohexafluoropropane and 1,3-Dichlorohexafluoropropane".
Brace, "Some Approaches to the Synthesis of Fluorinated Alcohols and Esters. I. Completely Fluorinated Esters from Hunsdiecker Reaction of Silver F-Alkanoates with Iodine", Journal of Fluorine Chemistry, vol. 18, (1981), pp. 515-524.
Abe Takashi
Fukaya Haruhiko
Hayashi Eiji
Agency of Industrial Science and Technology
Argo Margaret J.
Cintins Marianne
Ministry of International Trade & Industry
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