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2 565 778

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IPC

C07D245/02(2006-01-01)

C07D285/00(2006-01-01)

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Application

2014116781/04, 2014-04-24

(24)

Start date

2014-04-24

(22)

Actual filing date

2014-04-24

(45)

Published

2015-10-20

(72)

Inventor

Dzhemilev Usein MemetovichIbragimov Askhat GabdrakhmanovichKutepov Boris IvanovichKhajrullina Regina RadievnaGenijatova Al'Fija RavzatovnaVeklov Vitalij AleksandrovichTalipova Regina Rimovna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Neftekhimii I Kataliza Ran

METHOD OF PRODUCING 1,7-DITHIA-3,5-DIAZACYCLOALKAN-4-ONES Russian patent published in 2015 - IPC C07D245/02 C07D285/00

Abstract RU 2565778 C1

FIELD: chemistry.

SUBSTANCE: method includes reacting N,N'-bis(methoxymethyl)urea with α,ω-alkanedithiol of general formula HS(CH₂)_nSH (where n=2-4) in ethyl alcohol in the presence of a heterogeneous catalyst Cs₂CO₃/SiO₂, with molar ratio N,N'-bis(methoxymethyl)urea:HS(CH₂)_nSH=10:10, with catalyst content of Cs₂CO₃/SiO₂ in a reaction mass of 30-50 wt % with respect to N,N'-bis(methoxymethyl)urea, at temperature of 50-70°C and atmospheric pressure for 5-7 hours with output of 44-70%.

EFFECT: high output.

1 tbl, 1 ex

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RU 2 565 778 C1

Authors

Dzhemilev Usein Memetovich

Ibragimov Askhat Gabdrakhmanovich

Kutepov Boris Ivanovich

Khajrullina Regina Radievna

Genijatova Al'Fija Ravzatovna

Veklov Vitalij Aleksandrovich

Talipova Regina Rimovna

Dates

2015-10-20—Published

2014-04-24—Filed