IV I11 mechanism was suggested for the base-catalyzed reaction, as illustrated, in which reversible formation of alcoholate anion I11 is followed by reversible formation of epoxide IV, which, again reversibly, can isomerize to the enolate ion V of product ester. In the absence of a suitable proton donor, such a system could be in an equilibrating state until workup. Our attempts to trap intermediate anions as their products of reaction with added ...
![[1-(4-chlorophenyl)-2-oxo-2-phenylethyl] benzoate Structure](https://image.chemsrc.com/caspic/446/114679-01-5.png)
