63787-65-5Relevant academic research and scientific papers
Double hydrophosphination of alkynes promoted by rhodium: The key role of an N-heterocyclic carbene ligand
Di Giuseppe, Andrea,De Luca, Roberto,Castarlenas, Ricardo,Pérez-Torrente, Jesús J.,Crucianelli, Marcello,Oro, Luis A.
, p. 5554 - 5557 (2016)
The regioselective double hydrophosphination of alkynes mediated by rhodium catalysts is presented. The distinctive stereoelectronic properties of the NHC ligand prevent the catalyst deactivation by diphosphine coordination thereby allowing for the closing of a productive catalytic cycle.
Preparation of vinylphosphines by means of free radical addition of diphenylphosphine to alkynes and allenes
Mitchell, Terence N.,Heesche, Kerstin
, p. 163 - 170 (2007/10/02)
Diphenylphosphine adds readily to alkynes and allenes under free radical conditions.Alkynes normally give E-vinylphosphines as the primary (kinetic) product, but Z-vinylphosphines are the main products isolated.Allenes generally give complex product mixtures in which the predominant components are vinyl phosphines formed via addition of the Ph2P. radical to the central carbon atom of the allene fragment.
COMPLEXES ACETYLENIQUES DE TITANE(II). REACTIVITE VIS-A-VIS DE L'HYDROGENE MOLECULAIRE: UNE NOUVELLE APPROCHE DU TITANOCENE
Demerseman, Bernard,Coupanec, Pascale Le,Dixneuf, Pierre H.
, p. C35 - C38 (2007/10/02)
Electron-rich alkynetitanium(II) complexes Cp2Ti(PhCCPh)(PMe3), (MeCp)2Ti(PhCCPh)(PMe3) and Cp(C5Me5)Ti(PhCCPh) react with molecular hydrogen and are catalyst precursors for the hydrogenation of alkynes.Selective hydrogenation leading to cis-olefins takes place in the presence of an excess of PMe3 under mild conditions (1 atm H2).
