Facile Formation and Dissociation Behaviour of C-C Bond Resulted from the Nucleophilic Attack of Carbanions on a Carbonyl Carbon in Pt(hfac)2

摘要

[Pt(hfac)2] (hfac:hexafluoroacetylacetonate) reacts with MeNH2 in CH2Cl2/MeOH to give an –NHMe adduct complex on one of the carbonyl carbons, (MeNH3)[Pt(hfac)(hfac–NHMe)] 1 which is a tetrahedral intermediate of a Schiff base complex,[Pt(CF3COCHC(NMe)CF3)2] 2. Complex 1 activates H2O,MeOH, MeNO2 or acetone in solution to form the correspondingconjugate base adducts. The C–C bond in–CH2NO2 adduct 6, easily cleaves and generates nitromethane in solution.