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

Bis{eta (5)-(N,N-dimethylaminodimethylsilyl)tetramethylcyclopentadienyl}dic hlorotitanium(IV), [TiCl2{eta (5)-C5Me4(SiMe2NMe2)}(2)] (1), easily undergo es hydrolytic cleavage of the Si-N bonds to give dimethylamine and {1,3-bis (eta (5)-tetramethylcyclopentadienyl)-1,1,3,3-tetramethyldisiloxane}dichlor otitanium(IV), ansa-[TiCl2{(eta (5)-C5Me4SiMe2)(2)O}] (2), in almost quanti tative yields. The crystal structures of compounds 1 and 2 were determined by single-crystal X-ray diffraction. (C) 2001 Published by Elsevier Science B.V.