The Synthesis of Five-Membered N-Heterocycles by Cycloaddition of Nitroalkenes with (In)Organic Azides and Other 1,3-Dipoles

Abstract

Abstract Cycloaddition reactions have emerged as rapid and powerful methods for constructing heterocycles and carbocycles. [3+2] Cyclo­additions of nitroalkenes with various 1,3-dipoles have been an interesting research area for many organic chemists. This review outlines the synthesis of N-substituted and NH-1,2,3-triazoles along with other five-membered N-heterocycles through cycloaddition reactions of nitro­alkenes. 1 Introduction 2 Synthesis of 1,2,3-Triazoles 2.1 Synthesis of NH-1,2,3-Triazoles 2.2 Synthesis of N-Substituted 1,2,3-Triazoles 3 Synthesis of Pyrrolidines and Pyrroles 4 Synthesis of Pyrazoles 5 Conclusion

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