Patent ID: 8927779
Filing Date: 2015-01-06
Classification: C07B,C07C

Abstract:
1. A method for producing hydroxylated halogenated aryl compounds, comprising conducting a hydroxylation reaction at a temperature lower than 200° C., wherein a compound having the formula: is reacted with MOH in the presence of a catalytic system comprising a copper-based catalyst and a ligand L to form a compound having the formula: wherein: R is selected from the group consisting of acceptor inductive effect groups and donor mesomer effect groups; r is between 0 and 5; X is a halogen atom; M is selected from the group consisting of alkaline and alkaline-earth cations; and L represents a compound of formula (I) wherein X′, X″, the same or different, are selected from the group consisting of the nitrogen atom, the C═O group, the C═S group and the C—OH group; m n represents 1 or 2; R or R or R or R