940959-83-1Relevant academic research and scientific papers
Activation of polarized phosphorus-phosphorus bonds by alkynes: Rational synthesis of unsymmetrical 1,2-bisphosphine ligands and their complexes
Burck, Sebastian,Hajdok, Imre,Nieger, Martin,Bubrin, Denis,Schulze, Simon,Gudat, Dietrich
, p. 63 - 72 (2009)
The reactions of 1,1-diamino-2,2-diphenyl-substituted diphosphines featuring various degrees of P-P bond polarization with different alkynes were investigated. All diphosphines reacted with alkynes carrying one or two electron withdrawing carboxylic ester moieties under cleavage of the P-P bond and stereospecific phosphinyl-phosphination at the triple bond to give unsymmetrical ethane-1,2-bisphosphines. Several of the products were further converted into chelate complexes upon reaction with group-10 metal dihalides. All isolated compounds were characterized by analytical and spectroscopic data, and several of the new ligands and complexes by single-crystal X-ray diffraction studies.
Metal-assisted, reversible phosphinyl phosphination of the carbon-nitrogen triple bond in a nitrile
Burck, Sebastian,Gudat, Dietrich,Nieger, Martin
, p. 2919 - 2922 (2008/02/14)
(Chemical Equation Presented) Split P's: Phosphinyl-substituted N-heterocyclic phosphines react by unprecedented metal-assisted addition of the P-P bond to a nitrile triple bond to give complexes of hybrid bisphosphines. Surprisingly, the addition is reve
