metathesis

https://doi.org/10.1351/goldbook.M03878
A @M03989@ process formally involving the exchange of a bond (or bonds) between similar interacting @CT01038@ so that the bonding affiliations in the products are identical (or closely similar) to those in the reactants. For example:
M03878.png
(The term has its origin in inorganic chemistry with a different meaning, but this older usage is not applicable in physical organic chemistry.)
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1139 [Terms] [Paper]