Binuclear organometailic compounds. Part VII. Trimethylstannyl complexes of tantalum(V), molybdenum(IV), and tungsten(IV)

Abstract

The amine elimination reaction has been examined using some di- or tri-hydrido-transition metal complexes and Me₃SnNMe₂. This has afforded the new hydrido-trimethylstannyl complexes (cp)₂Ta(H)₂SnMe₃, (cp)₂Mo(H)SnMe₃, and (cp)₂W(H)SnMe₃(cp =π-C₅H₅). Halogen complexes (cp)₂M(X)SnMe₃(M = Mo or W; X = Cl, Br, or I) were obtained from the hydrido-precursors and suitable organic halides. Some aspects of the chemistry of (cp)₂M(X′)SnMe₃(M = Mo or W; X′= H or Cl) have been studied; the new complexes (cp)₂W(H)Cl and (cp)₂M(SnMe₃)[–C(CO₂Me)CHCO₂Me] have been obtained.