HYDROXY-ACID ALKOXYLATION Russian patent published in 2022 - IPC C07C51/367 A61K47/12 A61K8/36 A61Q1/00 A61Q19/00 A61Q19/10 C07C59/125 

FIELD: chemistry.

SUBSTANCE: present invention concerns alkoxylated hydroxycarboxylic acids, a method for their production, and their use. A mixture with surface-active properties of compounds of the formula (I') is proposed, in which R¹ is selected from alkyl with 1-10 carbon atoms, branched saturated or unsaturated aliphatic hydrocarbon residue with 1-30 carbon atoms, linear unsaturated aliphatic hydrocarbon residue with 1-30 carbon atoms, saturated or unsaturated cycloaliphatic hydrocarbon radicals with 3-10 carbon atoms, and aryl; R² is -CR^aR^b-CR^cR^d-, in which each R^a, R^b, R^c, and R^d is independently selected from hydrogen, unsubstituted alkyl with 1-30 carbon atoms, unsubstituted cycloalkyl with 5-7 carbon atoms, and cycloalkyl with 5-7 carbon atoms, which contains 1, 2, or 3 substituents, which are independently selected from alkyl with 1-6 carbon atoms and alkenyl with 2-6 carbon atoms, wherein two residues R^a and R^c, together with the group -CR^b-CR^d-, to which they are attached, can be cycloalkyl with 5-7 carbon atoms, which is unsubstituted or contains 1, 2, or 3 substitutes, which are independently selected from alkyl with 1-6 carbon atoms and alkenyl with 2-6 carbon atoms; R³ is selected from hydrogen and methyl; X in each case is a bond, or a divalent linear or branched saturated or unsaturated aliphatic hydrocarbon residue with 1-30 carbon atoms, or a divalent saturated or unsaturated cycloaliphatic hydrocarbon residue with 3-10 atoms carbon; k is a number from 2 to 100; n is a number from 1 to 10; and A is hydrogen or cationic equivalent; with the exception of 2-[2-(2-hydroxyethoxy)ethoxy]propanoic acid.

EFFECT: obtaining alkoxylated hydroxycarboxylic acids.

18 cl, 6 ex