77098-61-4Relevant academic research and scientific papers
Silica-Supported Cyclopentadienyl-Rhodium(I),-Cobalt(I), and-Titanium(IV) Complexes
Booth, B. L.,Ofunne, G. C.,Stacey, C.,Tait, P. J. T.
, p. 143 - 156 (1986)
The silylated cyclopentadiene derivative, (MeO)3Si(CH2)3C5H5, synthesised from commercially-available (MeO)3Si(CH2)3Cl, has been used to prepare the complexes 5-(MeO)3Si(CH2)3C5H4>Rh(CO)2, 5(MeO)3Si(CH2)3C5H4>Rh(COD)(COD= cyclo-octa-1,5-diene), and 5-(MeO)3Si(CH2)3C5H4>2TiCl2.The complexes 5(MeO)3Si(CH2)3C5H4>TiCl3, prepared by reaction of NaC5H4(CH2)3Si(OMe)3 with TiCl4 (1/1 molar ratio) and also by reaction of 5-(MeO)3Si(CH2)3C5H4>Ti(OEt)3 with CH3COCl, proved to be very unstable.Attempts to synthesise the complex 5-(MeO)3Si(CH2)3C5H4>(η5-C5H5)TiCl2, either by reaction of 5-(MeO)3Si(CH2)3C5H4>TiCl3 with NaC5H4 or reaction of (η5-C5H5)TiCl3 with NaC5H4(CH2)3Si(OMe)3, gave none of the expected product and only (η5-C5H5)TiCl2 could be isolated from these reactions.The cyclo-octadiene rhodium complex supported on silica has been shown to be an efficient cyclotrimerization catalyst, and the silica-supported titanium complex SIL-(CH2)3C5H4)TiCl2 is, after reduction with butyllithium, an efficient and selective catalyst for the hydrogenation of alk-1-enes.
