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2 179 478

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Application

99127996/04, 1999-12-31

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Start date

1999-12-31

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Actual filing date

1999-12-31

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Published

2002-02-20

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Inventor

Dzhemilev U.M.Ibragimov A.G.Jakovleva L.G.Sultanov R.M.Ushakova Z.I.Sharifullina F.M.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

CATALYST FOR SYNTHESIS OF 1,2-BIS-(DIALKYLALUMA)-1,2-DIPHENYL-ETHYLENES Russian patent published in 2002 - IPC

Abstract RU 2179478 C2

FIELD: organic chemistry, chemical technology, catalysts. SUBSTANCE: invention relates to catalyst used for synthesis of 1,2-bis-(dialkylaluma)-1,2-diphenylethylenes. Invention describes catalyst used for synthesis of 1,2-bic-(dialkylaluma)-1,2-diphenylethylenes synthesized by interaction of cobalt dichloride CoCl2, activating addition as triphenylphosphine Ph3P and dialkylaluminium chloride R2AlCl where R is Et, n-Pr as a reducing agent in the following mole ratio of components: CoCl2:Ph3P:R2AlCl = 1: (1.5-2.5): (2-6), respectively. The yield of 1,2-bis- (dialkylaluma)-1,2-diphenylethylenes is 63-78%. EFFECT: enhanced effectiveness and availability of catalyst, increased yield of end compounds. 1 tbl, 8 ex

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RU 2 179 478 C2

Authors

Dzhemilev U.M.

Ibragimov A.G.

Jakovleva L.G.

Sultanov R.M.

Ushakova Z.I.

Sharifullina F.M.

Dates

2002-02-20—Published

1999-12-31—Filed

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