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Oxide Nanoparticles in Heterogeneous Catalysis
Published in Varun Rawat, Anirban Das, Chandra Mohan Srivastava, Heterogeneous Catalysis in Organic Transformations, 2022
Garima Sachdeva, Jyoti Dhariwal, Monika Vats, Varun Rawat, Manish Srivastava, Anamika Srivastava
The carbon–nitrogen bond is one of the ample bonds found in organic chemistry in which a covalent bond exists between carbon and nitrogen. Nitrogen-containing heterocyclic compounds are one of the most sought-after compounds owing to their varying biological activity.
N-Heterocycles
Published in Navjeet Kaur, Metals and Non-Metals, 2020
Although various methods have been developed for the synthesis of heterocyclic compounds, their functional group tolerance and substrate scope is often limited. The protocols developed in the recent years involved metal- and non-metal-assisted carbon-nitrogen bond forming reactions. These reactions tolerate a number of functional groups, occur under mild conditions and proceed with high stereoselectivity. The use of metals and non-metals allows highly convergent multi-component coupling approaches which form many bonds and/or stereocenters in one-pot protocol. This chapter describes the approaches for the preparation of fused five-membered nitrogen heterocycles through metal- and non-metal-assisted reactions [9–16].
Rhodium catalysis in the synthesis of fused five-membered N-heterocycles
Published in Inorganic and Nano-Metal Chemistry, 2020
Navjeet Kaur, Neha Ahlawat, Yamini Verma, Pranshu Bhardwaj, Pooja Grewal, Nirmala Kumari Jangid
Metal-catalyzed carbon-nitrogen bond forming reactions have become one of the most powerful synthetic reactions of the modern organic chemistry reaction arsenal. Rh-mediated syntheses have been shown to be powerful methods. The review should help synthetic chemists to select the most suitable catalytic C-N bond formation method for their target molecule. This review compiled the recent applications of Rh catalysts in organic synthesis and showed that it is a highly dynamic research field. Several strategies have been pointed out in the past few years, to meet more sustainable, efficient and environmentally benign chemical products and procedures. The catalytic strategies have been focus of intense research because they avoid the use of toxic reagents. This methodology has emerged as a powerful tool for the efficient and chemoselective synthesis of heterocyclic molecules.