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2 423 370

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IPC

C07F5/06(2006-01-01)

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Application

2009125367/04, 2009-07-02

(24)

Start date

2009-07-02

(22)

Actual filing date

2009-07-02

(45)

Published

2011-07-10

(72)

Inventor

Dzhemilev Usein MemetovichIbragimov Askhat GabdrakhmanovichKhafizova Lejla OsmanovnaKhusainova Lilija InverovnaGubajdullin Rinat Ravilevich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Neftekhimii I Kataliza Ran

METHOD FOR COMBINED SYNTHESIS OF 1-ETHYL-2-ALKYLIDENEALUMINACYCLOPENTANES AND 1-ETHYL-2-METHYLENE-3-ALKYLALUMINACYCLOPENTANES Russian patent published in 2011 - IPC C07F5/06

Abstract RU 2423370 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method for combined synthesis of 1-ethyl-2-alkylidenealuminacyclopentanes (1) and 1-ethyl-2-methylene-3-alkylaluminacyclopentanes (2) of general formula: , where R=n-C₄H₉, n-C₆H₁₃, n-C₈H₁₇. The method involves reaction of 1,2-alkadienes with organoaluminium compounds in the presence of a zirconocene dichloride (Cp₂ZrCl₂) catalyst at room temperature. The organoaluminium compound used is ethylaluminium dichloride (EtAlCl₂). The reaction takes place in the presence of Mg powder in molar ratio R-CH=C=CH₂:EtAlCl₂:Mg:Cp₂ZrCl₂=10:(10-20):(10-14):(0.6-1.0) in an ethylene atmosphere in a tetrahydrofuran (THF) solution for 6-10 hours.

EFFECT: invention enables to obtain 1-ethyl-2-alkylidenealuminacyclopentanes (1) and 1-ethyl-2-methylene-3-alkylaluminacyclopentanes (2) without using initial reagents which are self-inflammable in air.

1 ex, 1 tbl

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RU 2 423 370 C2

Authors

Dzhemilev Usein Memetovich

Ibragimov Askhat Gabdrakhmanovich

Khafizova Lejla Osmanovna

Khusainova Lilija Inverovna

Gubajdullin Rinat Ravilevich

Dates

2011-07-10—Published

2009-07-02—Filed