Oxidative coupling of phosphinomethanides at a metal centre: P-P vs. C-C bond formation and the molecular structure of the novel bis-ylide (Me 3Si)2C=PMe2-PMe2=C(SiMe 3)2
Metal induced coupling of [CH2PMe2]- leads to Me2PCH2CH2PMe2, whereas coupling of [C(X)(SiMe3)(PMe2)]- (X=SiMe3 or PMe2) results in P-P bond formation affording [(X)(SiMe 3)C=PMe2-]2, with a central P-P bond of length 2.278(1) A.
Karsch, Hans H.,Deubelly, Brigitte,Mueller, Gerhard