The synthesis and mass spectral fragmentation of some 1,2-disubstituted tricerbonyl-η-cyclopentadienyimanganese derivatives: 2-lithiation of tricarbonyl(η-NN-dimethylsulphamoylcyclopentadienyl)manganese

Abstract

Tricarbonyl(η-NN-dimethylsulphamoylcyclopentadienyl)manganese (Ic) is metallated in the 2-position to give the intermediate (II) which can be trapped by electrophilic reagents to give 1,2-disubstituted tricarbonyl-η-cyclopentadienylmanganose derivatives (III) whose ¹H n.m.r. and mass spectral fragmentation are discussed as are those of tricarbonyl(η-azidosulphonylcyclopentadienyl)manganese (Ia).