Design and Synthesis of a Flavin–Samarium Complex as an Efficient Photocatalyst for Sulfoxidation Reactions

Abstract

We report the effect of samarium complexation of a modified flavin entity in displaying efficient photocatalytic activity toward sulfoxidation reactions. Single-crystal X-ray diffraction studies were performed for the structural characterization of the photocatalyst. Spectroscopic and electrochemical studies were undertaken to better understand the nature of the complex when compared with the nonmetalated flavin moiety. The catalytic efficiency was maximal in 2:8 water–2,2,2-trifluoroethanol using 1 mol% of the catalyst in the presence of blue LED light under an oxygen atmosphere. Insignificant product formation was observed with the nonmetalated flavin moiety. A wide range of sulfides were used to explore the substrate scope.

Key words

flavin - samarium - sulfoxidation - sulfides - photocatalysis - sulfoxides

Publication History

Received: 06 June 2022

Accepted after revision: 19 August 2022

Accepted Manuscript online:
19 August 2022

Article published online:
28 September 2022

• References and Notes

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