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(11)

2 469 043

(13)

(51)

IPC

C07J53/00(2006-01-01)

(21) (22)

Application

2011149829/04, 2011-12-07

(24)

Start date

2011-12-07

(22)

Actual filing date

2011-12-07

(45)

Published

2012-12-10

(72)

Inventor

Kuznetsova Svetlana AlekseevnaSkvortsova Galina PavlovnaMaljar Jurij NikolaevichKuznetsov Boris Nikolaevich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Khimii I Khimicheskoj Tekhnologii Sibirskogo Otdelenija Ran So Ran)

METHOD OF PRODUCING BETULINOL DIPROPIONATE Russian patent published in 2012 - IPC C07J53/00

Abstract RU 2469043 C1

FIELD: chemistry.

SUBSTANCE: method involves pre-activation of crushed birch bark with steam at temperature of 180°C and pressure of 3.4 MPa for 60-240 minutes and subsequent acylation with propionic acid at temperature of 130°C for 0.5-4.0 hours.

EFFECT: high output of the product and shorter duration of the birch bark acylation process.

1 cl, 1 tbl, 3 ex, 2 dwg

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RU 2 469 043 C1

Authors

Kuznetsova Svetlana Alekseevna

Skvortsova Galina Pavlovna

Maljar Jurij Nikolaevich

Kuznetsov Boris Nikolaevich

Dates

2012-12-10—Published

2011-12-07—Filed