CHIRAL ETHYLENEBIS(4,5,6,7-TETRAHYDRO-1-INDENYL) COMPLEXES OF ZIRCONIUM AND HAFNIUM - SEPARATION AND APPLICATION TO ASYMMETRIC POLYMERIZATION

Authors
HABAUE S SAKAMOTO H BARAKI H OKAMOTO Y
Citation
S. Habaue et al., CHIRAL ETHYLENEBIS(4,5,6,7-TETRAHYDRO-1-INDENYL) COMPLEXES OF ZIRCONIUM AND HAFNIUM - SEPARATION AND APPLICATION TO ASYMMETRIC POLYMERIZATION, Macromolecular rapid communications, 18(8), 1997, pp. 707-713
Citations number
20
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
18
Issue
8
Year of publication
1997
Pages
707 - 713
Database
ISI
SICI code
1022-1336(1997)18:8<707:CECOZ>2.0.ZU;2-0
Abstract
Optical resolution of ethylenebis(4,5,6,7-tetrahydro-1-indenyl) comple xes of zirconium and hafnium was performed by using cellulose tris(3,5 -dimethylphenylcarbamate) coated on silica-gel (Chiralcel OD) as a chi ral stationary phase for HPLC. The biphenyl-2,2'-diolate complexes wer e completely resolved with the highest separation factor. The isolated enantiomerically pure hafnocenes were applied for the asymmetric cycl opolymerization of 1,5-hexadiene.