Synergistic cooperative effect of CF₃SO₂Na and bis(2-butoxyethyl)ether towards selective oxygenation of sulfides with molecular oxygen under visible-light irradiation

Abstract

A safe, practical and eco-friendly method for the switchable synthesis of sulfoxides and sulfones through visible-light-initiated oxygenation of sulfides at ambient temperature under transition-metal-, additives-free and minimal solvent conditions. The...

Aerobic Photocatalysis: Oxidation of Sulfides to Sulfoxides

“…Inspired by previous thermal protocols, the He's group introduced the synergistic effect of CF 3 SO 2 Na ( 26 ) as the photocatalyst and 2‐butoxyethylether as the solvent and co‐catalyst under irradiation wavelength of 385–390 nm to provide a green protocol for the photochemical oxidation of sulfides (Scheme 11, C ) [34] . The protocol was applied to a wide variety of sulfides, namely several substituted thioanisoles, alkyl aryl sulfides, heteroaromatic substrates, several diaryl sulfides and disulfides.…”

Photocatalytic Biheterocyclization of 1,7-Diynes for Accessing Skeletally Diverse Tricyclic 2-Pyranones

“…Visible light photoredox catalysis (VLPC) has evolved as an attractive and powerful synthetic strategy in the organic community, benefitting from the fascinating features of good functional group compatibility, availability, and safety as well as sustainability . Consequently, a great number of seminal reports have demonstrated the significant applicability of VLPC reactions in synthetic chemistry, making it more versatile and workable .…”

Vitamin B1-catalyzed aerobic oxidative esterification of aromatic aldehydes with alcohols

“…This result suggests that the presence of O 2 is important for the intermolecular oxidative coupling reaction. 22 Furthermore, a radical trapping experiment by using 2,2,6,6-tetramethylpiperidinooxy (TEMPO, 1.0 equiv.) as a radical inhibitor provided clear evidence that the reaction might not proceed in a radical manner (Scheme 2C).…”