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2 538 595

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(51)

IPC

C07D285/00(2006-01-01)

(21) (22)

Application

2013146275/04, 2013-10-16

(24)

Start date

2013-10-16

(22)

Actual filing date

2013-10-16

(45)

Published

2015-01-10

(72)

Inventor

Dzhemilev Usein MemetovichIbragimov Askhat GabdrakhmanovichRakhimova Elena BorisovnaVasil'Eva Inna Vladimirovna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauk Institut Neftekhimii I Kataliza Rossijskoj Akademii Nauk

METHOD OF OBTAINING N,N'-BIS-(3-MERCAPTOPHENYL)TETRATHIADIAZACYCLOALKANES Russian patent published in 2015 - IPC C07D285/00

Abstract RU 2538595 C1

FIELD: chemistry.

SUBSTANCE: invention relates to organic chemistry, namely, to method of obtaining bis-(3-mercaptophenyl)tetrathiadiazacycloalkanes of formula 1 . Essence of method consists in interaction of m-aminothiophenol with formaldehyde and α,ω-alkanedithiol of general formula HSCH₂(CH₂)_nSH (where n=1, 2, 3) in presence of catalyst Sm(NO₃)₃·6H₂O with molar ratio m-aminothiophenol:formaldehyde:α,ω-alkanedithiol:Sm(NO₃)₃·6H₂O = 1:2:1:(0.03-0.07) at room temperature (~20°C) and atmospheric pressure in ethanol medium for 2.5-3.5 h.

EFFECT: obtaining compounds which can be applied as sorbents and extractants of precious metals, and selective complexants.

1 tbl, 1 ex

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RU 2 538 595 C1

Authors

Dzhemilev Usein Memetovich

Ibragimov Askhat Gabdrakhmanovich

Rakhimova Elena Borisovna

Vasil'Eva Inna Vladimirovna

Dates

2015-01-10—Published

2013-10-16—Filed