Solid-phase radical reactions have been developed for an important carbon–carbon bond-forming method on solid support under mild reaction conditions. 1 We have recently demonstrated that triethylborane as a radical initiator has the potential to induce intermolecular and intramolecular radical reactions on solid support. 2 Moreover, the employment of triethylborane and its related radical initiator such as diethylzinc at low reaction temperature would facilitate the control ...