Patent ID: 6235870
Filing Date: 2001-05-22
Classification: C07C,C07D,C08G

Abstract:
A process for the manufacture of epoxy compounds comprising the steps of(a) reacting a compound ##STR24##wherein R1 represents a residue comprising one or more additional phenol groups, with a compound ##STR25##in the presence of a polar compound and in the presence of a base and in the presence of an alkali compound at a temperature of from 30 to 110.degree. C., to form a compound of the formula ##STR26##wherein R.sub.2 represents a residue comprising at least one additional group of the formula ##STR27##(b) converting the compound of formula (D) obtained in step (a), into a compound of the formula: ##STR28##wherein R.sub.a represents at least one additional group of the formula ##STR29##by reacting the compound (IV) with gaseous hydrogen halide, in the presence of a catalytic amount of an acid of the formulaR.sub.5 --COOHwherein R.sub.5 represents hydrogen, an alkyl group, having from 1 to 10 carbon atoms optionally substituted by one to three halogens, or a cycloalkyl group having 5 or 6 carbon atoms in concentrated or glacial form;(b) converting of the compound of formula A into an epoxy compound of formula ##STR30##wherein R.sub.4 represents a residue comprising one or more additional groups ##STR31##at a temperature in the range of from 10 to 120.degree. C., in a polar solvent and in the presence: of a basic compound.