Über die Insertion von Hexafluoraceton in P-H-Bindungen von Phosphanen MenPE3–n / The Insertion of Hexafluoroacetone into P -H Bonds of Phosphanes MenPE3-n

Abstract

The reaction of PH3, MePH2, and Me2PH with hexafluoroacetone was re-investigated. The already reported compounds H2PC(CF3)2OH and Me(H)PC(CF3)2OH as well as the two other products HP[C(CF3)2OH]2 and MeP[C(CF3)2OH]2 were formed. No Me2PC-(CF3)2OH could be isolated from the reaction of Me2PH and hexafluoroacetone, however. Me2PPMe2, Me2P(O)OCH(CF3)2 and the phosphorane Me2PF[OCH(CF3)2]2 which exhibits non-rigidity at room temperature according to the 1H and 19F NMR spectra, were obtained. For all compounds IR, NMR, and MS data are given.