Click reaction has been used to make covalent organic cages with tetraphenyl ethylene and tetrabiphenyl ethylene AIEgens. The emissive cages exhibit enhanced aggregation induced emission and detect picric acid in nanomolar quantity in aque...
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Photocatalyzed Hydroaminodifluoroalkylation of Alkenes
Von Wiley-VCH zur Verfügung gestellt
Undescribed aminosulfinates enabled the preparation of β-fluoroalkylamines in a photocatalyzed addition reaction of the corresponding aminodifluoroalkyl radicals to electron-deficient, electron-rich alkenes and vinylaryls or unactivated alkenes.
Abstract
The synthesis of undescribed β-aminodifluoroethylsulfinates and their uses in the hydroaminodifluoroalkylation of alkenes is reported. This reaction is performed in the presence of a photocatalyst (4CzIPN, Ru complexes) and enables the direct incorporation of a β-difluoroamine moiety into vinylic aryls, unactivated alkenes, and electron-rich, or -deficient alkenes. The mechanism was studied, and the formation of a gem-difluoromethyl radical was observed after the selective oxidation of the sulfinate function.
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