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Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
Photoinduced Radical Phosphonylation of Alkyl Thianthrenium Salts with P(III) Reagents via Electron Donor-Acceptor
Kui Hu1, Feiyang Rao1, Yuanxiang He1
1State Key Laboratory of Chemistry for NBC Hazards Protection, Beijing, 102205, P. R. China.
Abstract:
A photoinduced radical phosphonylation protocol has been developed for the efficient synthesis of alkyl phosphonates. This transformation proceeds through the formation of electron donor-acceptor (EDA) complexes between alkyl thianthrenium salts and P(III) reagents, which can be directly activated by light irradiation without the need for external photocatalysts or additives. The reaction exhibits broad substrate scope, tolerating various functional groups, offering a sustainable approach for C(sp3)-P bond formation.
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