14894-77-0Relevant articles and documents
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.
Catalytic cyanation of aryl iodides using DMF and ammonium bicarbonate as the combined source of cyanide: A dual role of copper catalysts
Pawar, Amit B.,Chang, Sukbok
supporting information, p. 448 - 450 (2014/01/06)
Cu(ii)-catalyzed cyanation of aryl iodides has been developed using DMF and ammonium bicarbonate as the combined source of cyanide. It is assumed that copper is involved both in the generation of CN units from DMF-ammonia and in the cyanation of aryl halides. A range of electron-rich and fused (hetero)aryl iodides underwent cyanation resulting in moderate to good yields.
Pd(OAc)2-catalyzed alkoxylation of arylnitriles via sp 2 C-H bond activation using cyano as the directing group
Li, Wu,Sun, Peipei
, p. 8362 - 8366 (2013/01/15)
A Pd(OAc)2-catalyzed ortho-alkoxylation of arylnitrile was described. Using cyano as a directing group, the aromatic C-H bond can be functionalized efficiently to generate ortho-alkoxylated arylnitrile derivatives with moderate yields. The opti