Synthesis of {1,3-bis(η(5)-tetramethylcyclopentadienyl-1,1,3,3-tetramethyldisiloxane}dichlorotitanium(IV) via hydrolysis of bis{η(5)-(N,N-dimethylaminodimethylsilyl)tetramethylcyclopentadienyl}dichlorotitanium(IV)

Abstract

Bis{η(5)-(N,N-dimethylaminodimethylsilyl)tetramethylcyclopentadienyl}dichlorotitanium(IV), [TiCl2{η(5)-C5Me4(SiMe2NMe2)}2] (1), easily undergoes hydrolytic cleavage of the Si-N bonds to give dimethylamine and {1,3-bis(η(5)-tetramethylcyclopentadienyl)-1,1,3,3-tetramethyldisiloxane}dichlorotitanium(IV), ansa-[TiCl2{(η(5)-C5Me4SiMe2)2O}] (2), in almost quantitative yields. The crystal structures of compounds 1 and 2 were determined by single-crystal X-ray diffraction.

Keywords

• titanium
• titanocenes
• pendant amine groups
• hydrolysis
• siloxane bridge
• crystal structure