Patenton — panteon of patents

(19)

RU

(11)

2 156 768

(13)

C2

(51)

IPC

(21) (22)

Application

96107171/04, 1996-04-10

(24)

Start date

1996-04-10

(22)

Actual filing date

1996-04-10

(45)

Published

2000-09-27

(72)

Inventor

Dzhemilev U.M.Ibragimov A.G.Nikitina E.V.Sultanov R.M.Kunakova R.V.

(73)

Holder

Institut Neftekhimii I Kataliza S Opytnym Zavodom An Rb

METHOD OF PREPARING CYCLIC LITHIUM ALUMINATES Russian patent published in 2000 - IPC

Abstract RU 2156768 C2

FIELD: industrial fine organic synthesis. SUBSTANCE: described is method of preparing cyclic lithium aluminates of formula I: wherein R is C3H7,C8H17,Ph, which comprises reacting lithium alumohydride LiAlH4 with alpha-olefin of formula: in the presence of titanium tetrachloride at 10:(40- 44):(0.2-0.4) molar ratio, respectively in tetrahydrofuran under normal conditions for 2 hours followed by addition of olefin in equimolar amount with respect to lithium alumohydride and zirconium tetrachloride catalyst in amount of 3-5 mole % with respect to lithium alumohydride, and agitation for 16-20 hours. Method makes it to prepare individual cyclic lithium aluminates of formula I. The resulting compounds are useful as catalyst system components in process of oligomerization and polymerization of olefins and diene hydrocarbons. EFFECT: more efficient preparation method. 11 ex, 1 tbl

Similar patents RU2156768C2

Title Year Author Number
METHOD OF COMBINED PREPARATION OF 1-(ALKOXY)-2- PHENYLALUMACYCLOPROPANE AND 1-(ALKOXY)-2,4- DIPHENYLALUMACYCLOPENTANE 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Sultanov R.M.
  • Khafizova L.O.
  • Khalilov L.M.
  • Rusakov S.V.
 RU2156772C2
METHOD OF COMBINED PREPARATION OF 1-(DIALKYLAMINO)-2- PHENYLALUMA CYCLOPENTANE AND 1-(DIALKYLAMINO)-2,4- DIPHENYLALUMACYCLOPENTANE 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Khafizova L.O.
  • Sultanov R.M.
  • Khalilov L.M.
  • Kunakova R.V.
 RU2156771C2
METHOD OF PREPARING 1-(ALKOXY)-2- PHENYL(ALKYL)ALUMACYCLOPROPANES 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Khafizova L.O.
  • Sultanov R.M.
  • Kunakova R.V.
  • Dodonova N.E.
 RU2156769C2
METHOD OF PREPARING 1-ALKOXY (OR DIALKYLAMINO)-2,3- DIPHENYL(ALKYL)ALUMACYCLOPROPENES 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Ramazanov I.R.
  • Khalimov L.M.
  • Muslukhov R.R.
  • Sultanov R.M.
 RU2151772C1
METHOD OF SYNTHESIS OF 1-ETHYL-2,3-DIPHENYL(ALKYL)ALUMACYCLO-PROPENES 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Muslukhov R.R.
  • Khalilov L.M.
  • Ramazanov I.R.
 RU2152393C1
METHOD OF PREPARING 1-(DIALKYLAMINO)-2-PHENYL (ALKYL)ALUMACYCLOPROPANES 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Khafizova L.O.
  • Dodonova N.E.
  • Rusakov S.V.
  • Prokshina N.V.
 RU2156770C2
METHOD OF PREPARING 1-(ALKOXY)-2(2'-DIPHENYLETHYLENE)-3- PHENYLALUMACYCLOPROPANES 1997
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Khafizova L.O.
  • Khalilov L.M.
  • Kunakova R.V.
  • Rusakov S.V.
  • Chegodaeva M.F.
 RU2145327C1
METHOD OF PREPARING 1-CHLORO-2,3- DIPHENYL(ALKYL)ALUMACYCLOPROPENES 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Ramazanov I.R.
  • Khalilov L.M.
  • Muslukhov R.R.
  • Sultanov R.M.
 RU2147586C1
METHOD OF PREPARING 1-(DIALKYLAMINE)-2-(2'- PHENYLETHYLENE)-3-PHENYLALUMACYCLOPROPANES 1997
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Muslukhov R.R.
  • Khafizova L.O.
  • Rusakov S.V.
  • Dodonova N.E.
  • Emaletdinova L.D.
 RU2145328C1
METHOD OF COMBINED PREPARATION OF 1-ETHYL-2- PHENYLALUMACYCLOPROPANE AND 1-ETHYL-2,4- DIPHENYLALUMACYCLOPENTANE 1996
  • Dzhemilev U.M.
  • Ibragimov A.G.
  • Khafizova L.O.
  • Sultanov R.M.
  • Khalilov L.M.
  • Rusakov S.V.
 RU2153499C2

RU 2 156 768 C2

Authors

Dzhemilev U.M.

Ibragimov A.G.

Nikitina E.V.

Sultanov R.M.

Kunakova R.V.

Dates

2000-09-27—Published

1996-04-10—Filed

read Similar patents