Synthesis, crystal structure, and NMR Investigation of methyl alpha,alpha-dimethyl acetate-substituted pi-allylpalladium complexes

Authors
Schwarz, I Rust, J Lehmann, CW Braun, M
Citation
I. Schwarz et al., Synthesis, crystal structure, and NMR Investigation of methyl alpha,alpha-dimethyl acetate-substituted pi-allylpalladium complexes, J ORGMET CH, 605(1), 2000, pp. 109-116
Citations number
44
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
605
Issue
1
Year of publication
2000
Pages
109 - 116
Database
ISI
SICI code
0022-328X(20000630)605:1<109:SCSANI>2.0.ZU;2-Y
Abstract
The dimeric, trifluoroacetate-bridged pi-allylpalladium complex 6 and the c ationic allyl complex 8 were prepared and characterized by NMR spectroscopy as well as crystal structure analyses. The carbonyl group of the carboxyli c eater moiety does not form a chelate with the metal atom. The activation enthalpy of a pi-sigma-pi conversion could be determined to be 14.6 kcal mo l(-1) based on the dynamic NMR spectroscopy of the allylpalladium complex 8 . (C) 2000 Elsevier Science S.A. All rights reserved.