Patent · US Expired

Process for preparing cyclopentadienyl group-containing silicon compound or cyclopentadienyl group-containing germanium compound

US5360921A · kind A · utility

5Cited by
9References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 11, 1994
Grant dateNov 1, 1994
Priority date
Expiry dateMar 11, 2014

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07F17/00
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Disclosed is a process for preparing a cyclopentadienyl group-containing silicon compound or a cyclopentadienyl group-containing germanium compound, comprising reacting (i) a lithium, sodium or potassium salt of a cyclopentadiene derivative with (ii) a silicon halide compound or a germanium halide compound in the presence of a cyanide or a thiocyanate. The cyanide or the thiocyanate is preferably a copper salt. According to the process of the invention, a cyclopentadienyl group-containing silicon compound or a cyclopentadienyl group-containing germanium compound, which is very useful for the preparation of a metallocene complex catalyst component, can be prepared in a high yield for a short period of time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.