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Wenshan Wang
Wenshan Wang

Public Documents 1
Photocatalytic Germylation via Direct Hydrogen Atom Transfer
Wenshan Wang
Yan Liu

Wenshan Wang

and 9 more

February 12, 2025
An innovative visible-light-driven direct hydrogen atom transfer ( d-HAT) of Ge–H bond has been developed, wherein the photoexcited 9,10-phenanthraquinone ( PCHAT9) serves as an efficient photocatalyst for the generation of germanium-centered radicals from triphenylgermane. By employing hypervalent iodine reagents as SOMOphiles, this protocol facilitates streamlined germylation through a mechanism involving germyl radical addition followed by β-cleavage of a carboxyl radical to yield a diverse array of ethynyl-, vinyl-, nitrile-, and phenyl-functionalized germanes. The methodological leap signifies a noteworthy departure from the previous photocatalytic indirect hydrogen atom transfer ( i-HAT) relying on combined usage of PC SET with abstractors, which not only advances the methodology for creating germanium radicals in a photocatalytic fashion but also provides access to structurally novel and pharmaceutically promising organogermanium compounds that are difficult to synthesize by routine methods.

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