| abstract |
METHOD OF OBTAINING ESTERS OF ETHERIOR d-OXIACRYLIC ACID General formula CK2 = G-COOR, where c-Sn, 2g Schоog ^ CjEi, CH2 = CHCH ^? , СНз-Р-0-СгН5, IIосНэ-Р-0-Ph, СНЗ-Р-о-СБНц- cyclo, о! Inytevi of esterification of alkyl (apylidev) esters / 3-chloro-chloric acid with carbon monoxide or methylphosphonic acid in the medium of an organic solvent at. 0-5 * 's in the presence of an organic base, followed by dehydrochlorination of the obtained (allyl) ester of ai-oxo-substituted ^ -chloro-fopionic acid at lO-lOO ^' c in an organic solvent medium, the presence of triethylamine as The organic base and radical polymerization inhibitors are characterized in that, in order to increase the yield of the target product and simplify the process, three * ethylgiline is used as an organic base in the esterification stage and the dehydrochlorination is directly subjected to the reaction ionic mixture after etherification. < L |