USE OF TITANIUM AND ZIRCONIUM COMPOUNDS AS HOMOGENOUS CATALYST AND NOVEL TITANIUM AND ZIRCONIUM COMPOUNDS

摘要

PURPOSE: To improve reaction efficiency by using a homogenous catalyst consisting of specific compds. containing Ti and Zr when an olefinic or an acetylenic unsaturated hydrocarbon is polymerized or oligomerized. ;CONSTITUTION: A compd. represented by formula I (wherein M is Ti or Zr; X¹ and X² are each a halogen or a 1-20C aliphatic or aromatic hydrocarbon; O-O is groups represented by formulae II, III; R¹ and R² are each a steric hinderance alkyl, OR' or silyl; R' is a 1-20C aliphatic or aromatic hydrocarbon; R³ and R⁴ are each H, a 1-20C aliphatic or aromatic hydrocarbon, silyl or OR'; Y is methylene, ethylene or a divalent crosslinking group such as S, O or the like; (n) is 0 or 1) [e.g.; 2,2'-S(4-Me, 6-tBuC₆H₂O)₂Ti(CH₂Ph)₂] is prepared. In the presence of a heterogenous catalyst comprising this compd., an olefinic or acetylenic unsaturated hydrocarbon (e.g.; ethene) is polymerized or oligomerized.;COPYRIGHT: (C)1995,JPO