METHOD FOR OBTAINING CARBOXYLIC ACID ESTERS IN PRESENCE OF TITANIUM-CONTAINING CATALYST Russian patent published in 2018 - IPC C07C67/08 C07C69/82 C07C69/28 C07C69/54 

FIELD: chemistry.

SUBSTANCE: present invention relates to a process for the preparation of carboxylic acid esters which comprises the esterification of a carboxylic acid with an alcohol in the presence of a titanium catalyst selected from compounds of general formula Ti_n(OR)_x(OR')_xO_y, wherein n is an integer from 1 to 4; y is an integer from 0 to 6; x may be identical and different and represent an integer from 2 to 8; R is a straight or branched C₁-C₁₈alkyl, C₃-C₁₈cycloalkyl, R' is aryl optionally having an electron-donor substituent; or mixtures thereof, with the proviso that if n = 1, then x = 2 and y = 0, and if n>1 the compounds contain at least two alkoxy and two aryloxy groups.

EFFECT: reduction of the amount of catalyst used and the length of the process, while increasing conversion of the starting reactants and increasing the yield of the desired product.

34 cl, 5 dwg, 2 tbl, 11 ex