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2 574 736

(13)

(51)

IPC

C07D239/36(2006-01-01)

(21) (22)

Application

2015102868/04, 2015-01-28

(24)

Start date

2013-12-18

(22)

Actual filing date

2015-01-28

(45)

Published

2016-02-10

(72)

Inventor

Sivtsev Vladislav PetrovichAnikeev Vladimir Il'IchVolcho Konstantin PetrovichSalakhutdinov Nariman Faridovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Kataliza Im. G.K. Boreskova Sibirskogo Otdelenija Rossijskoj Akademii Nauk So Ran)Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Novosibirskij Institut Organicheskoj Khimii Im. N.N. Vorozhtsova Sibirskogo Otdelenija Rossijskoj Akademii Nauk So Ran)

METHOD FOR OBTAINING 3,4-BENZOCINNOLINE Russian patent published in 2016 - IPC C07D239/36

Abstract RU 2574736 C1

FIELD: chemistry.

SUBSTANCE: invention relates to improved method for obtaining 3,4-benzocinnoline by reduction of 2,2'-dinitrobiphenyl in isopropyl alcohol as solvent in presence of heterogenic catalyst - aluminium oxide (Al₂O₃) and supercritical solvent - isopropyl alcohol at temperature T = 320-360°C and pressure P = 150-220 atm. Process is realised in tubular flow-type reactor.

EFFECT: method makes it possible to obtain target product with high selectivity with quantitative conversion and high productivity of process in continuous mode, process is realised within several minutes without application of expensive catalysts.

2 cl, 2 tbl, 1 ex

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RU 2 574 736 C1

Authors

Sivtsev Vladislav Petrovich

Anikeev Vladimir Il'Ich

Volcho Konstantin Petrovich

Salakhutdinov Nariman Faridovich

Dates

2016-02-10—Published

2015-01-28—Filed