COMPOUNDS, COMPOSITION BASED ON THESE COMPOUNDS AS CATALYST PROMOTER (VERSIONS), AND POLYMERIZATION PROCESS (VERSIONS) Russian patent published in 2003 - IPC

FIELD: organic synthesis and polymerization processes. SUBSTANCE: invention provides novel compounds of general formula IA: (IA), where n is equal to 1; X¹ and X² each independently represents chlorine or bromine; A represents oxygen or sulfur atoms; R¹ hydrogen; R² represents C1-C6-alkyl, C1-C4-alkylidene, or CH₂OR⁵; R³ represents hydrogen, chlorine, or bromine; R⁴ represents C4-C6-alkyl; and R⁵ hydrogen; provided that R³ is absent if R² is C1-C4-alkylidene. Invention relates likewise to composition used in production of ethylene copolymers consisting of two or more above-indicated compounds selected from those of formulas IIA: (IIA) and IIB: (IIB) and also covers processes of production of polymers based on alpha-olefins involving above-indicated compositions as catalyst promoters. EFFECT: improved catalyst efficiency compared to catalysts promoted with known promoters. 8 cl, 3 tbl, 9 ex