Huisgen reaction

https://doi.org/10.1351/goldbook.08178
Cycloaddition of 1,3 dipolar compounds.
Source:
PAC, 2022, 94, 353. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 2021)' on page 434 (https://doi.org/10.1515/pac-2018-1010)