This chapter contains sections titled: Introduction Stoichiometric Opening of Epoxides by Electron Transfer Titanocene-Catalyzed Epoxide Opening Titanocene-Catalyzed Reductive Epoxide Opening to Alcohols Titanocene-Catalyzed Additions to α,β-Unsaturated Carbonyl Compounds Titanocene-Catalyzed 5-exo Cyclizations Titanocene-Catalyzed Radical Tandem Reactions Catalytic Enantioselective Epoxide Opening Conclusion