Gold nanoparticles supported on supramolecular ionic liquid grafted graphene: a bifunctional catalyst for the selective aerobic oxidation of alcohols

Modified Nanocarbons for Catalysis

“…proposed a bifunctional catalyst based on Au NPs immobilized onto a basic IL‐rGO support. The synthetic route of material 136 was reported in Scheme . The synthesis started with the modification of GO with tris(hydroxymethyl)aminomethane 133 to obtain material 134 , which was reacted with epoxide 135 followed by ion exchange with potassium hydroxide, treatment with HAuCl 4 and finally reduction with NaBH 4 to obtain material 136 .…”

“…The synthetic route of material 136 was reported in Scheme 52. [148] The synthesis started with the modification of GO with tris (hydroxymethyl)aminomethane 133 to obtain material 134, which was reacted with epoxide 135 followed by ion exchange with potassium hydroxide, treatment with HAuCl 4 and finally reduction with NaBH 4 to obtain material 136. Material 136 was useful for the aerobic oxidation of different primary and secondary aliphatic and aromatic alcohols into the corresponding aldehyde and ketone derivatives in green conditions using water as solvent at room temperature.…”

Natural hydroxyapatite‐supported MnO2: a green heterogeneous catalyst for selective aerobic oxidation of alkylarenes and alcohols

“…As a part of our ongoing research programme on oxidation reactions of alkylarenes and alcohols and using bio‐supported heterogeneous catalytic systems such as cellulose, chitosan, wool and silk or synthetic supports such as graphene oxide, here we report a novel heterogeneous catalytic system using MnO 2 as a green and cheap transition metal oxide and natural hydroxyapatite (NHAp) as a support for aerobic oxidation of alkylarenes and alcohols to their corresponding carbonyl compounds without using any other oxidizing agent.…”

Gold nanoparticles supported on three‐dimensional nitrogen‐doped graphene: an efficient catalyst for selective aerobic oxidation of hydrocarbons under mild conditions

“…In continuation of our efforts to introduce new and efficient catalysts based on graphene and other heterogeneous catalysts for oxidation reactions, [13,32,33,[43][44][45][46][47][48] and also the development of an efficient, economical, stable, long-lived and reusable catalyst to further improve the kinetic and thermodynamic properties of the oxidation of alkylarenes, herein we report the successful preparation and excellent catalytic activity of Au NPs immobilized on three-dimensional nitrogen-doped graphene-based frameworks (Au NPs@3D-(N)GFs) as a bifunctional catalyst (N dopant as base and Au NPs as active sites). It should be noted that this is the first example of the synthesis and use of 3D-(N)GFs-supported Au NPs as a novel catalyst with unique properties for the selective oxidation of alkylarenes to the corresponding carbonyl componds.…”