What question did this study set out to answer?

The research aims to explore a catalyst-free method for photo-oxidizing phosphines using a solvent-O2 charge transfer complex.

April 15, 2026

Harnessing solvent– 3 O 2 charge transfer complex for photochemical conversion of phosphines to phosphine oxides: the synergy of light and ambient air

Key Points

The research aims to explore a catalyst-free method for photo-oxidizing phosphines using a solvent-O2 charge transfer complex.
Catalyst-free photo-oxidation of phosphines conducted in a green solvent
Utilized ambient air as the oxidizing agent
Applied near-UV LED light for excitation
Achieved high atom economy in the oxidation process
Demonstrated broad scope for various phosphines
Enabled gram-scale efficiency in the conversion

Abstract

We report a catalyst-free photo-oxidation of phosphines via direct excitation of a solvent-O 2 charge-transfer complex. Using ambient air, a green solvent and a near-UV LED, this offers broad scope, high atom economy, and gram-scale efficiency.

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Harnessing solvent– 3 O 2 charge transfer complex for photochemical conversion of phosphines to phosphine oxides: the synergy of light and ambient air

Key Points

Abstract

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