The developments of theoretical studies on NHC‐catalyzed [n+ 2](n= 2, 3, 4) and other
cycloaddition/annulation reactions have been summarized in this review. The detailed …

An overview of the latest developments in the metal-free synthesis of non-benzo-fused N-
functionalized and NH-1, 2, 3-triazoles is provided in this feature article. Synthetic studies …

N-Heterocyclic carbene (NHC)-catalyzed [3+ 3] annulation of thioamides with modified enals
allowing the enantioselective synthesis of functionalized 1, 3-thiazin-4-ones is reported. The …

A formal [3+ 3] cycloaddition reaction between azides and in situ formed azaoxyallyl cations
has been realized. This reaction provided an efficient and practical pathway to synthesize 1 …

An N-heterocyclic carbene-catalyzed cleavage and recombination of the C–S bond was
developed. This is an efficient example of NHC reacting with an unsaturated thioester to …

The competing mechanisms of the highly selective ring expansion reaction of oxaziridines
catalyzed by N-heterocyclic carbenes (NHCs) have been theoretically studied by density …

In the past few decades, N-heterocyclic carbenes (NHCs) have opened the new field of
organocatalysis in synthetic organic chemistry. This review highlights the dramatic progress …

A one‐pot three‐component reaction of aldehydes, nitroalkanes and NaN3 for the synthesis
of NH‐1, 2, 3‐triazoles has been developed. The reaction provides a safe, efficient and step …

A general metal-free route to 1, 4-disubstituted and 1, 4, 5-trisubstituted 1, 2, 3-triazoles was
developed. α-Haloacroleins reacted with organic azides in a DMSO/H2O mixture solvent at …

Activation and cleavage of C–C double bonds are long-standing challenges in synthetic
chemistry. Herein, we report an unprecedented azide-mediated C–C double bond …