64599-50-4Relevant academic research and scientific papers
Facile Phenylphosphinidene Transfer Reactions from Carbene–Phosphinidene Zinc Complexes
Krachko, Tetiana,Bispinghoff, Mark,Tondreau, Aaron M.,Stein, Daniel,Baker, Matthew,Ehlers, Andreas W.,Slootweg, J. Chris,Grützmacher, Hansj?rg
, p. 7948 - 7951 (2017)
Phosphinidenes [R-P] are convenient P1 building blocks for the synthesis of a plethora of organophosphorus compounds. Thus far, transition-metal-complexed phosphinidenes have been used for their singlet ground-state reactivity to promote selective addition and insertion reactions. One disadvantage of this approach is that after transfer of the P1 moiety to the substrate, a challenging demetallation step is required to provide the free phosphine. We report a simple method that enables the Lewis acid promoted transfer of phenylphosphinidene, [PhP], from NHC=PPh adducts (NHC=N-heterocyclic carbene) to various substrates to produce directly uncoordinated phosphorus heterocycles that are difficult to obtain otherwise.
Ylidylphosphanes and -diphosphanes
Breitsameter, Florian,Schmidpeter, Alfred,Schier, Annette
, p. 381 - 388 (2007/10/03)
Chlorophosphanyl and dichlorophosphanyl alkylidene- and benzylidenephosphoranes 6 and 8 are converted by reaction with LiAlH4 to the respective phosphanes 7 and 9. The former can be isolated, but decompose on heating or on protonation to give the ylidyl diphosphane 11 and the phosphonium ylide or phosphonium salt, respectively. The final products are the cyclooligophosphanes 15-17. Only the C-tert-butyl derivative 7c is stable in both regards. The conformation of the RPH group in 7 as compared to that of the RPCl group in 6 clearly reflects their different interaction with the ylide moiety.
