Decatungstate-based photocatalysts for organic transformations

The functionalization of C−H bonds is critical in organic syntheses. However, their direct functionalization under mild conditions is complicated by their inherent inertness. To address this challenge, decatungstates (W₁₀O₃₂⁴⁻), as versatile, inexpensive, and easily accessible hydrogen-atom transfer (HAT) photocatalysts, have emerged as powerful catalysts that can activate inert C−H bonds under ultraviolet irradiation to generate carbon-centered radicals for constructing C−C, C−N, C−S, and C−F bonds. This review highlights recent advances in W₁₀O₃₂⁴⁻-based photocatalysts and their applications in organic transformations. Overall, this article explores various W₁₀O₃₂⁴⁻-photocatalyzed organic transformations. In addition to summarizing the reported literatures, it critically discusses the current challenges and offers insights for future developments in this promising research field.