Process for a decarbromodiphenylethane predominate product havin

Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing

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570184, 570206, 570210, 570211, C07C 1712, C07C 2518

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active

053248740

ABSTRACT:
This invention relates to an improvement in a process for preparing a product predominant in decabromodiphenylethane. In the improved process the diphenylethane is reacted with bromine in the presence of bromination catalyst in a reaction vessel by feeding diphenylethane to the reaction vessel below the liquid level of bromine in the reaction vessel. The improvement comprises contacting diphenylethane, bromine, and catalyst at a rate sufficient to obtain a diphenylethane predominant product having enhanced color and particle size.

REFERENCES:
patent: 2033612 (1936-03-01), Clark et al.
patent: 2244284 (1941-06-01), Britton et al.
patent: 3141860 (1964-07-01), Sauer et al.
patent: 3232959 (1966-02-01), Hahn
patent: 3285965 (1966-11-01), Jenkner
patent: 3331797 (1967-07-01), Kopetz et al.
patent: 3763248 (1973-10-01), Mitchell
patent: 3833674 (1974-09-01), Brackenridge
patent: 3959387 (1976-05-01), Brackenridge
patent: 3965197 (1976-06-01), Stepniczka
patent: 4287373 (1981-09-01), Garman et al.
patent: 4521633 (1985-06-01), Pedjac
patent: 4639481 (1987-01-01), Giles, Jr.
patent: 4666947 (1987-05-01), Brichta et al.
patent: 4740629 (1988-04-01), Brackenridge et al.
patent: 5008477 (1991-04-01), Hussain
patent: 5030778 (1991-07-01), Ranford
"Flammfestmachen von Kunststoffen" by Dr. Hans Vogel, p. 49.
By Green et al. in "Fire Retardants": Proceedings of 1974 International Symposium on Flammability and Fire Retardants, pp. 68-76, 1974.
By Inaba et al. in the `Journal of Organic Chemistry`, 49 (12), pp. 2093-2098, 1984.
By Corey et al. in the `Journal of Organicmetallic Chemistry`, 210 (2), pp. 149-161, 1981.
By Gassman et al. in the `Journal of Organic Chemistry`, 47 (20), pp. 4002-4004, 1982.
CAS Registry Handbook-Reg. No. 84852-53-9.

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