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2 139 879

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Application

98102503/04, 1998-02-12

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Start date

1998-02-12

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Actual filing date

1998-02-12

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Published

1999-10-20

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Inventor

Dzhemilev U.M.Ibragimov A.G.Jakovleva L.G.Satenov K.G.Khalilov L.M.Rusakov S.V.

(73)

Holder

Institut Neftekhimii I Kataliza S Opytnym Zavodom An Rb

METHOD OF PREPARING 2-ALKYL-1,4-BIS (DIALKOXYALUM)BUTANES Russian patent published in 1999 - IPC

Abstract RU 2139879 C1

FIELD: chemical industry, more particularly organometal and fine organic synthesis. SUBSTANCE: preparation of 2-alkyl-1,4-bis (dialkoxyalum)butanes of formula I: C2H5, n-C4H9 wherein R is R′; nC4H9, nC6H13, CH2, Si(CH3)3 is which are useful as catalyst complex components in processes of polymerization and oligomerization of olefin and diene hydrocarbons. Method comprises reacting dialkylaluminium chloride and metallic magnesium with mixture of alpha-olefins and dichloroethane in the presence of zirconacene chloride as catalyst. Reaction is carried out in argon atmosphere under normal conditions for 8-12 hours in tetrahydrofuran. Yield of the desired products is 59-34 %. Method makes it possible to prepare 2-alkyl-1,4-bis (dialkoxyalum)butanes of formula I having high regioselectivity. EFFECT: more efficient preparation method. 14 ex, 1 tbl

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RU 2 139 879 C1

Authors

Dzhemilev U.M.

Ibragimov A.G.

Jakovleva L.G.

Satenov K.G.

Khalilov L.M.

Rusakov S.V.

Dates

1999-10-20—Published

1998-02-12—Filed

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