Patent · US Expired

Enhanced synthesis of racemic metallocenes

US5847175A · kind A · utility

2Cited by
0References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 4, 1997
Grant dateDec 8, 1998
Priority date
Expiry dateApr 4, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S526/943
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Chiral metallocenes are prepared by reacting a salt of an asymmetric bis(cyclopentadienyl)-moiety-containing ligand with a chelate diamine adduct of a transition, lanthanide, or actinide metal halide in an organic solvent or diluent so as to produce said chiral metallocene.

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