CYCLOPENTADIENYL DERIVATIVES, METHOD OF THEIR SYNTHESIS AND INTERMEDIATE COMPOUNDS FOR THEIR SYNTHESIS Russian patent published in 2001 - IPC

FIELD: organic chemistry. SUBSTANCE: invention relates to cyclopentadienyl derivatives of the formula (I) A-X-B where: 1) A means monofunctional hydrocarbyl radical of the general formula (II) ; 2) -X- means bridge between A and B and it consists of bifunctional radical taken among alkylene group, silanulene group, alkyl-substituted silaalkylene group, siloxasilanylene group; 3) B means monofunctional hydrocarbyl radical taken among: e) any of radicals A determined above; f) cyclopenta- -dienyl radical. Invention describes also methods of synthesis of these compounds and intermediate compounds used for synthesis of cyclopentadienyl derivatives. Indicated compounds can be used for synthesis of catalysts able for homo- and copolymerization of alpha-olefins. EFFECT: improved method of synthesis. 15 cl, 9 tbl, 4 ex