Photoredox catalysed reductive cleavage of dibenzothiophene dioxides enabled by a temperature-controlled photoreactor.

ABSTRACT: The cleavage of C-S bonds in dibenzothiophene dioxides under reductive photoredox catalysed conditions is reported. The reactions afford sulfinates, which can be used in a variety of subsequent transformations for diversification. When using unsymmetrical dibenzothiophene substrates, reductive cleavage occurs preferentially at one C-S bond. Experimental and computational studies provide insight into this interesting selectivity. The process tolerates the presence of oil (dodecane), highlighting a possible application in the removal of dibenzothiophene impurities from crude oil. The reactivity of some substrates is highly dependent on reaction temperature, hence the development of a versatile and inexpensive 3D printed photoreactor that allows for the precise control of reaction temperature

SUBMITTER: Wang S 

PROVIDER: S-EPMC12588190 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature