Title: oxidative addition Long Title: IUPAC Gold Book - oxidative addition DOI: 10.1351/goldbook.O04367 Status: current Definition The insertion of a metal complex into a covalent bond involving formally an overall two-electron loss on one metal or a one-electron loss on each of two metals, i.e. \[\rm{L}_{n}\rm{M}^{m}+\rm{XY}\rightarrow \rm{L}_{n}\rm{M}^{m+2}\left(\rm{X}\right)\left(\rm{Y}\right)\] or \[2\rm{L}_{n}\rm{M}^{m}+\rm{XY}\rightarrow \rm{L}_{n}\rm{M}^{m+1}\left(\rm{X}\right)+\rm{L}_{n}\rm{M}^{m+1}\left(\rm{Y}\right)\] In radical chemistry, the term is used to indicate a radical addition to a carbon–carbon double bond, under oxidative conditions. For example: Related Terms - covalent bond: https://goldbook.iupac.org//terms/view/C01384 - insertion: https://goldbook.iupac.org//terms/view/I03058 - radical: https://goldbook.iupac.org//terms/view/R05066 Source - PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1149 (https://doi.org/10.1351/pac199466051077) Other Outputs - html: https://goldbook.iupac.org/terms/view/O04367/html - json: https://goldbook.iupac.org/terms/view/O04367/json - xml: https://goldbook.iupac.org/terms/view/O04367/xml Citation: Citation: 'oxidative addition' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.O04367 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-01-13T02:38:05+00:00