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2 307 835

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(51)

IPC

C07D333/10(2006-01-01)

C07D333/08(2006-01-01)

(21) (22)

Application

2006115730/04, 2006-05-06

(24)

Start date

2006-05-06

(22)

Actual filing date

2006-05-06

(45)

Published

2007-10-10

(72)

Inventor

Dzhemilev Usein MemetovichIbragimov Askhat GabdrakhmanovichD'Jakonov Vladimir Anatol'EvichZinnurova Regina AdikovnaDodonova Nina EgorovnaBiglova Raisa Zigandarovna

(73)

Holder

Institut Neftekhimii I Kataliza Ran

METHOD FOR PRODUCTION OF 2,3,4,5-TETRAALKYLTHIOPHENES Russian patent published in 2007 - IPC C07D333/10 C07D333/08

Abstract RU 2307835 C1

FIELD: organic chemistry.

SUBSTANCE: claimed method includes interaction of disubstituted acetylenes with n-BuMgCl and thionyl chloride SOCl₂ in presence of zircon acetyl dichloride in argon atmosphere at room temperature in diethyl ether for 6-10 hours. Yield of target product is 48-58 %. Compounds of present invention are useful in food processing industry, as biologically active compounds, colorants, additives for oils and hydraulic liquids.

EFFECT: simplified method with increased yield; accessible and non-toxic raw materials.

1 tbl, 9 ex

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RU 2 307 835 C1

Authors

Dzhemilev Usein Memetovich

Ibragimov Askhat Gabdrakhmanovich

D'Jakonov Vladimir Anatol'Evich

Zinnurova Regina Adikovna

Dodonova Nina Egorovna

Biglova Raisa Zigandarovna

Dates

2007-10-10—Published

2006-05-06—Filed