POLYMERIZATION AND ASYMMETRIC OLIGOMERIZATION OF ALLYLSILANES USING CHIRAL ETHYLENEBIS(4,5,6,7-TETRAHYDRO-1-INDENYL)ZIRCONIUM AND ETHYLENEBIS(4,5,6,7-TETRAHYDRO-1-INDENYL)HAFNIUM COMPLEXES

Authors
HABAUE S BARAKI H OKAMOTO Y
Citation
S. Habaue et al., POLYMERIZATION AND ASYMMETRIC OLIGOMERIZATION OF ALLYLSILANES USING CHIRAL ETHYLENEBIS(4,5,6,7-TETRAHYDRO-1-INDENYL)ZIRCONIUM AND ETHYLENEBIS(4,5,6,7-TETRAHYDRO-1-INDENYL)HAFNIUM COMPLEXES, Macromolecular chemistry and physics, 199(10), 1998, pp. 2211-2215
Citations number
29
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular chemistry and physics → ACNP
ISSN journal
10221352
Volume
199
Issue
10
Year of publication
1998
Pages
2211 - 2215
Database
ISI
SICI code
1022-1352(1998)199:10<2211:PAAOOA>2.0.ZU;2-4
Abstract
Stereospecific polymerization and asymmetric oligomerization of allyls ilanes were investigated by using C2- and C-s-symmetric zirconocene ca talysts. Isotactic and syndiotactic poly(allylsilane)s were produced w ith ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium dichloride (1) and ta(5)-cyclopentadienyl)(eta(5)-fluorenyl)zirconium dichloride (6), respectively. Bulky allylsilanes afforded optically active oligomers in the reactions using optically active ethylenebis(4,5,6,7-tetrahydro -1-indenyl)zirconium and -hafnium complexes.