Advances in N-heterocyclic carbene organocatalysis from 2015 to 2024

The key progress in the field of N-heterocyclic carbene (NHC) organocatalysis during the period of 2015 to 2024 is systematically summarized and discussed in this review. The content is organized based on the activation modes involved in these transformations. Trends in the development and plausible future breakthroughs within this highly active research field are provided at the end of this review based on our own research experiences and opinions on NHC organocatalysis.