Defective graphene as a metal-free catalyst for chemoselective olefin hydrogenation by hydrazine

Abstract

A series of defective graphenes containing or not containing N, B, S and other heteroatoms exhibited general activity as metal-free catalysts for the hydrogenation of CC double bonds by hydrazine in the presence of oxygen.

A Versatile, Mild and Selective Reduction of Nitroarenes to Aminoarenes Catalyzed by CeO2 Nanoparticles with Hydrazine Hydrate

“…The conversion of 3‐nitrostyrene was quantitative using n‐CeO 2 as catalyst to the formation of 3‐aminoethylbenzene in 98% selectivity under identical conditions. This observation is in contradiction with recently reported carbocatalysts like activated carbon and defective graphene in where 3‐nitroethylbenzene was exclusively formed with more than 95% selectivity. These results indicate that the nature of catalyst plays a significant role in determining the chemoselective reduction.…”

Playing with the weakest supramolecular interactions in a 3D crystalline hexakis[60]fullerene induces control over hydrogenation selectivity

“…The relative spatial disposition of the butyl malonate arms is essential for the diimide generation reaction taking place over reactive double bond sites. 29 These controlled solid-state reactions will contribute to the creation of novel soft and dynamic carbon-based advanced absorbent materials with a variety of direct technological applications, as chemosensors and environmental remediation devices. In addition, once the scaling process limitation could be addressed, these polymorphs could play an important role in the synthesis of new fullerene derivatives.…”

Tridimensional N, P-Codoped Carbon Sponges as Highly Selective Catalysts for Aerobic Oxidative Coupling of Benzylamine

“… 5 − 8 The ideal structure of graphene as a monoatom-thick 2D layer constituted by sp 2 carbons in a hexagonal geometry allows the generation of defects that can become active sites for different reactions such as aerobic oxidations and hydrogenations. 9 , 10 Among them, considering the greenness of using ambient oxygen as the terminal oxidant, oxidation of hydrocarbons, alcohols, and amines are particularly important. 11 − 14 …”