The reactivity of M (η6-arene) 2 derivatives of early transition metals (M= Ti, Cr, Mo, arene= MeC6H5; M= V, Nb, arene= 1, 3, 5-Me3C6H3) has been investigated and the syntheses of new and known compounds are described. The derivatives M (CH3COO) 3, M= Ti, V, Nb, Cr; M (CF3COO) 3, M= Ti, Nb, Cr; M (acac) 3, M= Ti, V, Mo, acac= acetylacetonato, and M (F6acac) 3, F6acac= hexafluoroacetylacetonato, M= V, Nb have been prepared by ...