Introduction Transmetalation of Functionalized Organolithium and Organomagnesium Reagents Transmetalation of Organoboron and Organoaluminium Reagents Transmetalation of Functionalized Organozinc Reagents Preparation of Organozinc Reagents Preparation of Organozinc Halides Preparation of Diorganozinc Reagents Substitution Reactions with Copper-Zinc Reagents Addition Reactions with Copper-Zinc Reagents Transmetalation of Organotin, Organosulfur, and Organotellurium Reagents Transmetalation of Organotitanium and Organomanganese Reagents Transmetalation of Organozirconium and Organosamarium Reagents Conclusion