REACTION OF DISUBSTITUTED 1,3-BUTADIYNES R1C-EQUIVALENT-TO-CC-EQUIVALENT-TO-CR-2 WITH ZIRCONOCENE COMPLEXES - CLEAVAGE OF THE CENTRAL C-C SINGLE BOND TO FORM SYMMETRICALLY AND UNSYMMETRICALLY DOUBLY ACETYLIDE-BRIDGED METALLOCENE COMPLEXES

Authors
ROSENTHAL U OHFF A BAUMANN W KEMPE R TILLACK A BURLAKOV VV
Citation
U. Rosenthal et al., REACTION OF DISUBSTITUTED 1,3-BUTADIYNES R1C-EQUIVALENT-TO-CC-EQUIVALENT-TO-CR-2 WITH ZIRCONOCENE COMPLEXES - CLEAVAGE OF THE CENTRAL C-C SINGLE BOND TO FORM SYMMETRICALLY AND UNSYMMETRICALLY DOUBLY ACETYLIDE-BRIDGED METALLOCENE COMPLEXES, Organometallics, 13(7), 1994, pp. 2903-2906
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
13
Issue
7
Year of publication
1994
Pages
2903 - 2906
Database
ISI
SICI code
0276-7333(1994)13:7<2903:ROD1R>2.0.ZU;2-3
Abstract
It has been shown that the zirconocene complex Cp2Zr(THF) (Me3SiC2SiMe 3) readily reacts with disubstituted butadiynes R1C=CC=CR2 (R1 = R2 = SiMe3; R1 = SiMe3, R2 = (t)Bu or Ph) to form the dimeric symmetrical c omplex [Cp2Zr(mu-eta1:eta2-C=CSiMe3)]2 (2) and doubly acetylide-bridge d, unsymmetrical complexes [Cp2Zr(mu-eta1:eta2-C=CSiMe3) (mu-eta1:eta2 -C=C(t)Bu)ZrCp2] (3) and [Cp2Zr(mu-eta1:eta2-C=CSiMe3) (mu-eta1:eta2-C =CPh)ZrCp2] (4), respectively. The structure of the products has been established by X-ray structure analyses.