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2 157 811

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Application

99104836/04, 1999-03-09

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Start date

1999-03-09

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Actual filing date

1999-03-09

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Published

2000-10-20

(72)

Inventor

Dzhemilev U.M.Ibragimov A.G.Khafizova L.O.Nikitina E.V.Khalilov L.M.

(73)

Holder

Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF COMBINED PREPARATION OF 1-ETHYL-2-ARYL, 1- ETHYL-3-ARYL, 1-ETHYL-2,4-DIARYL, 1-ETHYL-2,5-DIARYL ALUMACYCLOPENTANES AND 1-ETHYL-2-ARYL ALUMACYCLOPROPANES Russian patent published in 2000 - IPC

Abstract RU 2157811 C1

FIELD: fine, industrial and metallurgical synthesis. SUBSTANCE: method comprises reacting arylolefins of general formula: wherein Ar is Ph, O-MePh, p-MePh, with triethyl aluminium at molar ratio of 10:(10-14) respectively, in the presence of catalyst Cp2ZrCl2 which is used in amount of 2-6 mole % with respect to arylolefin. Reaction is carried out in argon atmosphere under normal conditions for 10-14 hours. Yield of the desired products is 72-93%. Method makes it possible to prepare mono and dirarylsubstituted alumacyclopentanes having high regioselectivity, and aryl substituted alumacyclopropanes. EFFECT: more efficient preparation methods. 1 tbl

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RU 2 157 811 C1

Authors

Dzhemilev U.M.

Ibragimov A.G.

Khafizova L.O.

Nikitina E.V.

Khalilov L.M.

Dates

2000-10-20—Published

1999-03-09—Filed

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