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Application

96101606/04, 1996-01-29

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Start date

1996-01-29

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Actual filing date

1996-01-29

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Published

2000-07-10

(72)

Inventor

Dzhemilev U.M.Ibragimov A.G.Muslukhov R.R.Khalilov L.M.Ramazanov I.R.

(73)

Holder

Institut Neftekhimii I Kataliza S Opytnym Zavodom An Rb

METHOD OF SYNTHESIS OF 1-ETHYL-2,3-DIPHENYL(ALKYL)ALUMACYCLO-PROPENES Russian patent published in 2000 - IPC

Abstract RU 2152393 C1

FIELD: organic chemistry and chemical technology. SUBSTANCE: invention proposes method of synthesis of 1-ethyl-2,3-diphenyl(alkyl)alumacyclopropenes of the general formula (I) where R is Ph, C3H7, C4H9 that involves interaction of disubstituted acetylene of the general formula R-≡-R with ethylaluminium chloride (EtAlCl2) and metallic magnesium taken in the mole ratio = (1.0-1.4) : 1 : (1.0-1.4), respectively, in the presence of titanocene dichloride (Cp2TiCi2) as catalyst taken in the amount 2-5 mol.% with respect to acetylene. Process is carried out in atmosphere of inert gas under normal conditions in tetrahydrofuran medium for 10-14 h. Proposed method ensures to synthesize the novel 1-ethyl-2,3-diphenyl(alkyl)alumacyclo-propenes exhibiting high degree of regioselectivity. EFFECT: improved method of synthesis. 1 tbl

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RU 2 152 393 C1

Authors

Dzhemilev U.M.

Ibragimov A.G.

Muslukhov R.R.

Khalilov L.M.

Ramazanov I.R.

Dates

2000-07-10—Published

1996-01-29—Filed

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