58395-72-5Relevant academic research and scientific papers
Copper-free monomeric and dendritic palladium catalysts for the sonogashira reaction: Substituent effects, synthetic applications, and the recovery and re-use of the catalysts
Heuze, Karine,Mery, Denise,Gauss, Dominique,Blais, Jean-Claude,Astruc, Didier
, p. 3936 - 3944 (2004)
A series of bis(tert-butyl-phosphine)- and bis(cyclohexylphosphine)- functionalized PdII monomers and polyamino (DAB) dendritic catalysts were synthesized and investigated for Sonogashira carbon-carbon coupling reactions in a copper-free proced
Base-Free Hydrogenation of Carbon Dioxide to Methyl Formate with a Molecular Ruthenium-Phosphine Catalyst
Westhues, Niklas,Belleflamme, Maurice,Klankermayer, Jürgen
, p. 5269 - 5274 (2019/07/12)
Herein, a molecular ruthenium-phosphine catalyst system for the effective base-free methyl formate production from carbon dioxide is described. In detail, the novel [Ru(N-triphosCy)(tmm)] complex, bearing sterically demanding cyclohexyl groups in the triphos-ligand structure, enabled in combination with the Lewis acid Al(OTf)3 the selective transformation of carbon dioxide to methyl formate with unprecedented activity. From a mechanistic perspective, in the initial step formic acid is formed, undergoing a consecutive Lewis acid promoted esterification with methanol to methyl formate. This selective transformation with carbon dioxide paves the way to versatile processes for important C1 building blocks.
Synthesis of Bis(phosphinomethyl)amines via Bis(hydroxymethyl)phosphonium Salts. Isolation of 9,9-Bis(hydroxymethyl)-9-phosphoniabicyclononane Hydrogensulfate and Chloride Salts, and the Crystal Structures of (1+)Cl(1-) and <(C6H11)2P
Fawcett, John,Hoye, Peter A. T.,Kemmitt, Raymond D. W.,Law, David J.,Russell, David R.
, p. 2563 - 2568 (2007/10/02)
Phosphines of the type PR2H reacted readily with formaldehyde in the presence of acid to afford high yields of bis(hydroxymethyl)phosphonium salts (1+)X(1-), (1+)X(1-), , and (X = Cl or HSO4).Treatment of the mixed
