This chapter focuses on radical reactions promoted by tributyltin hydride, like the Barton-McCombie deoxygenation and carbon-carbon bond forming radical chain reactions. It also covers non-chain radic...This chapter focuses on radical reactions promoted by tributyltin hydride, like the Barton-McCombie deoxygenation and carbon-carbon bond forming radical chain reactions. It also covers non-chain radical reactions that produce carbon-carbon bonds like the pinacol, McMurry, and Hoffmann-Loeffler-Freytag reactions.