121194-82-9Relevant academic research and scientific papers
New (Ether-Phosphine) Ligands with Different Electronic and Steric Properties
Lindner, Ekkehard,Dettinger, Johannes,Moeckel, Andrea
, p. 1519 - 1524 (2007/10/02)
New ether-phosphines of the type Ph2P-D (2d, 2g-l, 2n-p) with different electronic and steric properties which are provided with open-chained or cyclic ether moieties are obtained by reaction of LiPPh2 with the corresponding chloromethyl substituted ethers ClCH2-D (1d, 1g-l, 1n-p) in THF.The ligands 2d, 2g-l, and 2n-p are characterized by selected IR and NMR data which function as probes for complexation to transition metals.Ether-Phosphines, O-Basicity, Stereochemistry
Neuartige basische Liganden fur die homogenkatalytische Methanolcarbonylierung XVII. Dioxanylmethyldiorganylphosphane als Steuerliganden bei der Methanol(hydro)carbonylierung zu Acetaldehyd und Essigsaure
Lindner, Ekkehard,Sickinger, Anselm,Wegner, Peter
, p. 75 - 94 (2007/10/02)
The (ether-phosphane) ligands R2PCH2(1,4-diox) (1a-c) (R=Ph (a), Mess (b), Cy (c); diox=dioxane residue) and Ph2PCH2(1,3-diox) (2a) are obtained from the corresponding phosphides LiPR2 and 2-chloromethyl-1,4-dioxane and -1,3-dioxane, respectively, at -40 oC in ether.High pressure experiments can provide useful information on conversion and selectivity in the (hydro)carbonylation of methanol, if parameters like educt/catalyst ratio, effect of substituents of the ligands 1a-c, 2a, directed application of cobalt complexes, and composition of catalyst and synthesis gas are varied.The possibility that there is a cobalt-catalyzed (hydro)carbonylation of methanol to acetaldehyde and acetic acid cycle is explored.
