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2 322 431

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IPC

C07C11/167(2006-01-01)

(21) (22)

Application

2006138384/04, 2006-10-30

(24)

Start date

2006-10-30

(22)

Actual filing date

2006-10-30

(45)

Published

2008-04-20

(72)

Inventor

Dzhemilev Usein MemetovichIbragimov Askhat GabdrakhmanovichD'Jakonov Vladimir Anatol'EvichZinnurova Regina AdikovnaDodonova Nina EgorovnaKovtunenko Irina Anatol'Evna

(73)

Holder

Institut Neftekhimii Kataliza Ran

1,2,3,4-TETRAALKYL-1-IODO-1,3-BUTADIENE PREPARATION METHOD Russian patent published in 2008 - IPC C07C11/167

Abstract RU 2322431 C1

FIELD: organic synthesis.

SUBSTANCE: method comprises stirring 1,2-disubstituted acetylenes with n-BuMgCl in diethyl ether in presence of zirconacene dichloride under argon atmosphere at room temperature during 3 h, cooling reaction mass to 0°C and adding I-₂ ether solution, and stirring at 20°C for further 3-5 h.

EFFECT: increased selectivity of reaction without use of pyrophoric butyllithium.

1 tbl, 10 ex

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RU 2 322 431 C1

Authors

Dzhemilev Usein Memetovich

Ibragimov Askhat Gabdrakhmanovich

D'Jakonov Vladimir Anatol'Evich

Zinnurova Regina Adikovna

Dodonova Nina Egorovna

Kovtunenko Irina Anatol'Evna

Dates

2008-04-20—Published

2006-10-30—Filed