Process for the manufacture of epoxy compounds

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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528 95, 528214, 549518, 568641, 568643, 568645, 568649, C07C 43225, C07D301026, C08G 5902

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active

060019549

ABSTRACT:
Process for the preparation of compounds of the formula ##STR1## wherein Hal represents chlorine, bromine or iodine and preferably chlorine, wherein R.sub.a represents hydrogen or a residue comprising one or more additional groups of the formula, ##STR2## from compounds ##STR3## wherein R.sub.2 represents hydrogen or a residue comprising one or more additional groups of the formula ##STR4## by reaction with gaseous hydrogen halide in the presence of a catalytic amount of an organic acid. Epoxy resins are prepared via the reaction of a compound of formula (A) in the presence of a basic compound.

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patent: 4900801 (1990-02-01), Takata et al.
patent: 4966790 (1990-10-01), Iizuka et al.
Organic Syntheses, Collective vol. 2, pp. 292-293, 1943.
(Houben-Weyl) Methoden Der Organischen Chemie, vol. 3, R. Stroh: Herstellung von Chlorverbindungen, pp. 836-837, 1962.
(Houben-Weyl) Methoden Der Organischen Chemie, vol. 3, H. Meerwein: Ather, pp. 79-81, 1965.
Gsan-Zade, Use of the multiple attenuated total internal reflection method for studying the synthesis of epoxy resins, Lakokras. Mater. Ikh Primen., vol. 5, pp. 11-13, 1976.

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