METHOD OF COMBINED PREPARATION OF 1-(DIALKYLAMINE)- 2,3,4,5-TETRAALKYL (ARYL) ALUMACYCLOPENTADIENES AND 1- (DIALKYLAMINE)-2,3-DIALKYL(ARYL) ALUMACYCLOPROPENES Russian patent published in 1999 - IPC

Abstract RU 2131432 C1

FIELD: fine organic, industrial and organometallic synthesis. SUBSTANCE: method comprises reacting disubstituted acetylenes of formula: wherein R is n- Pr, n-Bu or Ph with dialkylaminealuminium dichlorides of formula: wherein R-≡-R is Et or n-Bu and metallic magnesium at 10:(15-25): (10-14) molar ratio, respectively, in the presence of zirconacene dichloride in amount of 2.6 mole % with respect to disubstituted acetylene. Reaction is carried out in argon atmosphere under normal conditions for 16-24 hours. Solvent is diethyl ether and benzene in 1:1 ratio by volume. Yield of the desired products is 53-78%. New organoaluminium compounds of formula I: and formula II: R′ are useful as catalyst system components in processes of oligomerization and polymerization of olefins and diene hydrocarbons. EFFECT: more efficient preparation method. 12 ex, 1 tbl

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RU 2 131 432 C1

Authors

Dzhemilev U.M.

Ibragimov A.G.

Ramazanov I.R.

Kunakova R.V.

Khalilov L.M.

Islamgulova A.Z.

Sharipova A.Z.

Dates

1999-06-10Published

1997-04-21Filed