24988-36-1Relevant articles and documents
Micelle-like molecular capsules with anthracene shells as photoactive hosts
Kondo, Kei,Suzuki, Akira,Akita, Munetaka,Yoshizawa, Michito
, p. 2308 - 2312 (2013)
Aromatic micelles: Hydrophobic and aromatic-aromatic interactions promoted the spontaneous formation of micelle-inspired molecular capsules with large aromatic shells from bent bisanthracene amphiphiles (see picture). The micellar capsules could accommoda
About the selectivity and reactivity of active nickel electrodes in C-C coupling reactions
Beil, Sebastian B.,Bomm, Alexander,Breiner, Manuel,Holtkamp, Michael,Karst, Uwe,Müller, Timo,Schüll, Aaron,Schade, Wolfgang,Schollmeyer, Dieter,Schulz, Lara,Waldvogel, Siegfried R.
, p. 14249 - 14253 (2020/04/23)
Active anodes which are operating in highly stable protic media such as 1,1,1,3,3,3-hexafluoroisopropanol are rare. Nickel forms, within this unique solvent, a non-sacrificial active anode at constant current conditions, which is superior to the reported powerful molybdenum system. The reactivity for dehydrogenative coupling reactions of this novel active anode increases when the electrolyte is not stirred during electrolysis. Besides the aryl-aryl coupling, a dehydrogenative arylation reaction of benzylic nitriles was found while stirring the mixture providing quick access to synthetically useful building blocks.
Organic semiconductor photocatalyst can bifunctionalize arenes and heteroarenes
Ghosh, Indrajit,Khamrai, Jagadish,Savateev, Aleksandr,Shlapakov, Nikita,Antonietti, Markus,K?nig, Burkhard
, p. 360 - 366 (2019/08/15)
Photoexcited electron-hole pairs on a semiconductor surface can engage in redox reactions with two different substrates. Similar to conventional electrosynthesis, the primary redox intermediates afford only separate oxidized and reduced products or, more rarely, combine to one addition product. Here, we report that a stable organic semiconductor material, mesoporous graphitic carbon nitride (mpg-CN), can act as a visible-light photoredox catalyst to orchestrate oxidative and reductive interfacial electron transfers to two different substrates in a two- or three-component system for direct twofold carbon–hydrogen functionalization of arenes and heteroarenes. The mpg-CN catalyst tolerates reactive radicals and strong nucleophiles, is straightforwardly recoverable by simple centrifugation of reaction mixtures, and is reusable for at least four catalytic transformations with conserved activity.