Abstract

A convenient photo-dehalogenation of α-haloketones was developed under irradiation with a purple LED. This simple method does not require any catalyst and water could act as the sole additive, affording efficiently the dehalogenated products with different substituents at room temperature in air atmosphere. Mechanistic study indicated that the ether solvent is also the photoreductant for the reaction, and facile α-deuteration of the ketone product could be achieved when deuterated solvent is used.

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