STERICALLY CONGESTED LIGANDS - SYNTHESIS AND SOLUTION CONFORMATION OFBISPHOSPHITE LIGAND PRECURSORS

Authors
PASTOR SD RICHARDSON CF NABIRAHNI MA
Citation
Sd. Pastor et al., STERICALLY CONGESTED LIGANDS - SYNTHESIS AND SOLUTION CONFORMATION OFBISPHOSPHITE LIGAND PRECURSORS, Phosphorus, sulfur and silicon and the related elements, 90(1-4), 1994, pp. 95-102
Citations number
53
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Phosphorus, sulfur and silicon and the related elements → ACNP
ISSN journal
10426507
Volume
90
Issue
1-4
Year of publication
1994
Pages
95 - 102
Database
ISI
SICI code
1042-6507(1994)90:1-4<95:SCL-SA>2.0.ZU;2-K
Abstract
The synthesis and characterization of precursors to sterically hindere d bisphosphite ligands containing the dibenzo[d,f][1,3,2]dioxaphosphep in and dibenzo[d,g][1,3,2]dioxaphosphocin ring system is described. Th e Delta G double dagger for ring inversion of the dibenzo[d,f][1,3,2]d ioxaphosphepin ring was determined by VT P-31{H-1} NMR spectroscopy Th e H-1 NMR spectra of the dibenzo[d,g][1,3,2]dioxaphosphocin ligands we re consistent with the eight-membered ring adopting a boat-chair confo rmation in solution.