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2 678 819

(13)

(51)

IPC

C07J53/00(2006-01-01)

C07J63/00(2006-01-01)

C07J75/00(2006-01-01)

(21) (22)

Application

2018134929, 2018-10-04

(24)

Start date

2018-10-04

(22)

Actual filing date

2018-10-04

(45)

Published

2019-02-04

(72)

Inventor

Arrus SalakhBakibaev Abdigali AbdimanapovichMalkov Viktor Sergeevich

(73)

Holder

Federalnoe Gosudarstvennoe Avtonomnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Natsionalnyj Issledovatelskij Tomskij Gosudarstvennyj Universitet Ni Tgu)

METHOD OF OBTAINING BETULIN BISFORMATE Russian patent published in 2019 - IPC C07J53/00 C07J63/00 C07J75/00

Abstract RU 2678819 C1

FIELD: technological processes.

SUBSTANCE: invention relates to a method for producing betulin bisformate, comprising boiling birch bark followed by filtration, concentrating the mother liquor, diluting the mother liquor followed by filtering and drying the obtained target product, and then with repeated treatment of the bark with acetone and the release of an additional portion of the target product, characterized in that both formic acid is used as a solvent and an extractant, with a total duration of 20 hours at 105 °C.

EFFECT: method has been developed for obtaining betulin bisformate with a high yield of the target product, with technological simplification of the process.

1 cl, 1 ex

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RU 2 678 819 C1

Authors

Arrus Salakh

Bakibaev Abdigali Abdimanapovich

Malkov Viktor Sergeevich

Dates

2019-02-04—Published

2018-10-04—Filed