107257-40-9Relevant articles and documents
Phosphaethene. Synthesis by Vacuum Gas-Solid Reaction (VGSR) and Characterization by Photoelectron Spectroscopy
Lacombe, Sylvie,Gonbeau, Danielle,Cabioch, Jean-Luc,Pellerin, Bruno,Denis, Jean-Marc,Pfister-Guillouzo, Genevieve
, p. 6964 - 6967 (1988)
Phosphaethene, the unstable parent compound in the phosphaalkenes series, has been thoroughly investigated using theoretical calculations.For the first time, its electronic structure is evidenced from its photoelectron spectrum.The PE spectra of phosphaethene and 1-phosphapropene, generated in the gas phase by the respective vacuum dehydrochlorination of chloromethylphosphine and 1-chloroethylphosphine, have been recorded in situ by the use of a vacuum device directly coupled to the spectrophotometer.The vertical ?P=C and np ionization energies are observed respectively at 10.30 and 10.70 eV for phosphaethene and 9.75 and 10.35 eV for 1-phosphapropene.The band's characterizations are discussed through correlations with the corresponding imines and with substituted phosphaalkenes and are confirmed by ab initio theoretical calculations.The results indicate a rather significant energetic separation between the two first ?P=C and np ionic states.
Efficient Synthesis of Unstabilized Phospha-alkenes by Stereoselective Lewis Base-Induced Rearragement of Vinylphosphines
Gaumont, A.C.,Guillemin, J.C.,Denis, J.M.
, p. 171 - 174 (2007/10/02)
Vinylphosphines are synthesized by reduction of the corresponding vinyl-phosphonic or phosphonic esters and by P-alkylation of the vinylphosphine parent compound 1.They rearrange into phospha-alkenes in the presence of a catalytic amount of a strong Lewis
