1279719-11-7Relevant articles and documents
Eosin y photoredox catalyzed net redox neutral reaction for regiospecific annulation to 3-sulfonylindoles: Via anion oxidation of sodium sulfinate salts
Rohokale, Rajendra S.,Tambe, Shrikant D.,Kshirsagar, Umesh A.
supporting information, p. 536 - 540 (2018/02/09)
An eosin Y photoredox catalyzed net redox neutral process for 3-sulfonylindoles via the anionic oxidation of sodium sulfinate salts and its radical cascade cyclization with 2-alkynyl-azidoarenes was developed with visible light as a mediator. The reaction offers metal and oxidant/reductant free, visible light mediated vicinal sulfonamination of alkynes to 2-aryl/alkyl-3-sulfonylindoles and proceeds via the generation of a sulfur-centered radical through direct oxidation of the sulfinate anion by an excited photocatalyst with a reductive quenching cycle. The mild conditions, use of an organic dye as photo-catalyst, bench stability and easily accessible starting materials make the present approach green and attractive.
ZnO-mediated regioselective C-arylsulfonylation of indoles: A facile solvent-free synthesis of 2- and 3-sulfonylindoles and preliminary evaluation of their activity against drug-resistant mutant HIV-1 reverse transcriptases (RTs)
Tocco, Graziella,Begala, Michela,Esposito, Francesca,Caboni, Pierluigi,Cannas, Valeria,Tramontano, Enzo
, p. 6237 - 6241 (2013/10/22)
A ZnO-mediated one-pot solvent-free protocol for the regioselective C-arylsulfonylation of indoles is described and some novel derivatives were tested on wild type and non-nucleoside inhibitor resistant K103N and Y181C HIV-1 reverse transcriptases (RTs).