product-determining step

https://doi.org/10.1351/goldbook.P04862
The step of a @S05970@ in which the product distribution is determined. The product-determining step may be identical to, or occur later than, the @R05139@ on the @R05168@.
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1153 [Terms] [Paper]