Photocatalyzed Reduction of β‐Nitroacrylates via Hydrogen Atom Transfer Promoted by Tetrabutylammonium Decatungstate

Tetrabutylammonium decatungstate is hereby applied as efficient photocatalyst for the hydrogenation or deuteration of β-nitroacrylates via hydrogen atom transfer. The protocol affords the desired products in good yields, with short reaction time, and demonstates a good functional group compatibility.

A photocatalyzed reduction of the CC double bond in β-nitroacrylates under flow conditions is developed. The reaction takes place upon irradiation at 390 nm in the presence of tetrabutylammonium decatungstate and requires γ-terpinene as a hydrogen source. Products are obtained in good yields, and various functional groups are tolerated, such as unconjugated double bonds, benzyl groups and carbonyls, thus demonstrating a substantial chemoselectivity.

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