ALKANE SOLUBLE NON-METALLOCENE PRECATALYSTS Russian patent published in 2023 - IPC C07F7/00 C08F4/642 C08F4/659 C08F210/16 

FIELD: chemical compounds.

SUBSTANCE: compound of formula (1), where M is Zr or Hf, and each R is independently -CH₂-(unsubstituted phenylene)-CR¹R²R³, where each unsubstituted phenylene is an unsubstituted 1,4- phenylene, unsubstituted 1,3-phenylene or unsubstituted 1,2-phenylene, and where each R¹, R² and R³ independently represents unsubstituted (C₁ -C₁₅)alkyl. Also proposed is a method for synthesizing a compound of formula (I), a solution of a compound of formula (1) in an alkane solvent, a catalytic system containing compounds of formula (1), and a method for producing a polyolefin polymer using the proposed catalytic system.

EFFECT: compound of formula (1) provides a solution to the problem of instability associated with known alkane-insoluble non-metallocene pre-catalysts, since compound (1) can be stored as a solution in alkanes without an activator.

9 cl, 1 dwg, 2 tbl, 12 ex