Recent advancements in organic synthesis catalyzed by graphene oxide metal composites as heterogeneous nanocatalysts

Abstract

In the last decades, heterogeneous catalysis has emerged as a promising approach for sustainable synthesis. Among this, metal‐based graphene oxide (GO) as catalysts is widely used due to their unique properties such as physical and thermal stability of the catalysts in successive reaction runs and reusability. Metal‐supported GOs are quite prevalent and probably suitable acidic catalysts for both research laboratories and industrial processes. Herein, we have described the catalytic efficiency of various metal‐supported GO catalysts in different organic transformations like oxidation, reduction, multicomponent reactions, alkylation, condensation, dehydration, dehydrogenation, and Suzuki, Heck, and Sonogashira reactions. This article has been divided into three subsections: (i) GO‐supported metal as a catalyst, (ii) GO‐supported bimetal as a catalyst, and (iii) GO‐supported metal oxide as a catalyst for the easier understanding of the vast community of researchers. The foremost aim of this article is to summarize the uses of metal‐supported GO in the preparation of diverse synthetic molecules. The recent advancements in GO metal composites as catalysts with their applications have been deliberated.

Recent Advances in Graphene and Graphene‐Based Heterogeneous Nanocatalysts: C−C And C−Y Coupling Reactions in Liquid Phase

“…[34] Another review has been published in 2020 by Jay Soni's groups, which discusses Suzuki, Heck, and oxidation/reduction. [35] Nevertheless, we covered recently published articles and additionally discussed graphene synthesis methods, graphene as carbo-catalysis, and Cross dehydrogenative coupling (CDC) reactions in liquid phase heterogeneous catalysis. We have investigated articles published from 2011 to till date.…”

Graphene oxide-catalyzed trifluoromethylation of alkynes with quinoxalinones and Langlois' reagent

“… 1 This ultrathin 2D carbocatalyst, using its inherent reactivity of oxidation, acidity and catalytic activity, has been successfully applied to oxidation, acid- or base-catalyzed transformations, oxidative coupling of amines, hydration of alkynes, aza-Michael addition reactions of amines and α,β-unsaturated compounds, ring opening of epoxy compounds, and dehydrogenation–oxidation of nitrogen heterocycles. 2 However, GO as a catalyst in organic transformation still faces serious challenges, compared with its applications in electronics, optical materials, solar cells and biosensors. 3 …”

A CMC-g-poly(AA-co-AMPS)/Fe3O4 hydrogel nanocomposite as a novel biopolymer-based catalyst in the synthesis of 1,4-dihydropyridines

“…The increasing need for reaction systems with catalytic green aspects and benign echo progress and advancement of eco-benign, cost-effective, high-atom-economy, and high-yield processes is highly desirable. 1–3…”