Journal
CHEMPLUSCHEM
Volume 87, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.202200008
Keywords
aerobic oxidations; green chemistry; photocatalysis; photochemistry; sulfoxides
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Funding
- Hellenic Foundation for Research and Innovation (HFRI) [655]
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This review summarizes the photochemical protocols for the oxidation of sulfides to sulfoxides using oxygen or air as the oxidant. The review includes a historical overview, key mechanistic studies and proposed mechanisms, as well as categorizing different catalytic systems in the literature.
Sulfoxides constitute one of the most important functional groups in organic chemistry found in numerous pharmaceuticals and natural products. Sulfoxides are usually obtained from the oxidation of the corresponding sulfides. Among various oxidants, oxygen or air are considered the greenest and most sustainable reagent. Photochemistry and photocatalysis is increasingly applied in new, as well as traditional, yet demanding, reaction, like the aerobic oxidation of sulfides to sulfoxides, since photocatalysis has provided the means to access them in mild and effective ways. In this review, we will summarize the photochemical protocols that have been developed for the oxidation of sulfides to sulfoxides, employing air or oxygen as the oxidant. The aim of this review is to present: i) a historical overview, ii) the key mechanistic studies and proposed mechanisms and iii) categorize the different catalytic systems in literature.
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