METHOD OF COMBINED SYNTHESIS OF 1-ETHYL-2-METHYLENE-3-ALKYL-ALUMACYCLOPROPANES AND 1-ETHYL-1,1-DI-(ALK-1'-ENE-3'-YL)-ALANS Russian patent published in 2002 - IPC

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention describes method of combined synthesis of novel compounds 1- ethyl-2-methylene-3-alkylalumacyclopro-panes of the general formula (I) and 1-ethyl-1,1-di-(alk-1'-ene-3'- yl)-alans of the general formula: Et-Al(CH(R)CH= CH₂)₂ where R is C₆H₁₃, n-C₈H₁₇ characterized that alkylalkylene of the general formula R-‗•‗ where R is given above is subjected for interaction with ethylaluminium dichloride EtAl-Cl₂ and metallic magnesium in the mole ratio R-‗•‗ : EtAl-Cl₂ : Mg = 10:(10-14), respectively, in the presence of titanacene dichloride (CpTi-Cl₂) as a catalyst taken in the amount 2-6 mole% with respect to alkylalkylene in medium of tetrahydrofuran in argon atmosphere at the room temperature (~20 C) under normal pressure for 6-10 h. Proposed compounds can be used as a component of catalytical systems in processes of oligomerization and polymerization of olefinic and diene hydrocarbons and in fine organic and organometallic synthesis also. EFFECT: improved method of synthesis. 1 tbl, 10 ex