A crucial feature of this system is the photocatalytic generation of hydroxyl radicals, released from Ti⁴⁺-OH, Ti³⁺-OH, and Ti²⁺-OH bonds. With a redox potential of 2.8 V (second only to fluorine), hydroxyl radicals are highly reactive, yet transient species that drive the organotitanium catalytic process. While TiO₂ photocatalysis is known to produce hydroxyl radicals, their synergistic role in facilitating complex reaction cascades in this system is unprecedented.