This review describes the remarkable ability of titanocene derivatives to c
atalyze reactions of Si-H compounds. These reactions involve addition of Si
-H to unsaturated molecules, dehydrocoupling of Si-H with Si-H and with a v
ariety of other E-H bonds, and redistribution of compounds containing the R
O-Si-H bond system. The characterization of the many new titanocene complex
es, which have been isolated as intermediates from these catalytic reaction
s, are also reviewed. (C) 2000 Elsevier Science S.A. All rights reserved.