Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1998-09-03
1999-10-12
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
C07D25130
Patent
active
059657316
ABSTRACT:
In an aqueous reaction medium, phenol is brominated with bromine under conditions forming an aqueous hydrobromic acid phase and an organic phase consisting essentially of molten 2,4,6-tribromophenol. The aqueous hydrobromic acid phase and the molten 2,4,6-tribromophenol are separated from each other, and optionally the molten 2,4,6-tribromophenol is washed with an aqueous decolorizing solution. An alkali metal base and water are mixed with the 2,4,6-tribromophenol to form an alkali metal salt of tribromophenol. Then, in a mixture consisting essentially of water and at least one liquid ketone, cyanuric chloride is reacted with at least a portion of the alkali metal 2,4,6-tribromophenolate of such that tris(2,4,6-tribromophenoxy)-s-1,3,5-triazine is produced.
REFERENCES:
patent: 3843650 (1974-10-01), Pews et al.
patent: 3950306 (1976-04-01), Pews et al.
Thurston, et al., "Cyanuric Chloride Derivatives. I. Aminochloro-s-triazines", Journal of the Am. Chemical Society, Jul. 6, 1951, vol. 73, no. 7, pp. 2981-3008.
Degussa Specification Sheet, "Cyanuric Chloride", May 5, 1995, 1 page.
Degussa Corporation, Material Safety Data Sheet, May 9, 1996, pp. 1-5.
Ao Meng-Sheng
Beaver Phillip R.
Beltz Mark W.
Dadgar Billie B.
Albemarle Corporation
Ford John M.
Spielman, Jr. E. E.
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