METHOD OF PRODUCING MORONIC ACID Russian patent published in 2013 - IPC C07J63/00 C07J75/00 

FIELD: chemistry.

SUBSTANCE: method of producing moronic acid involves treating 3β,28-diacetoxyolean-18(19)-ene with an alcoholic solution of an alkali while boiling, followed by separation of the formed 3β,28-dihydroxyolean-18(19)-ene, which is treated with a Jones reagent with molar ratio of 3β,28-dihydroxyolean-18(19)-ene to Jones reagent equal to 1:10 in acetone, mixing the reaction mixture for 4-5 hours at temperature of 0 - +5°C and separating the end product, where 3β,28-diacetoxyolean-18(19)-ene is obtained by reacting allobetulin with acetic acid anhydride in the presence of a catalytic amount of perchloric acid with molar ratio allobetulin: acetic anhydride: perchloric acid equal to 1:100:0.1, while boiling for 15-20 hours and then separating the product.

EFFECT: high efficiency of use.

2 cl, 1 ex