# Darzens reaction

> English word · Noun

## Definitions
1. The chemical reaction of a ketone or aldehyde with an α-haloester in the presence of base to form an α,β-epoxy ester.

## Etymology
Discovered in 1904 by Auguste George Darzens.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/darzens-reaction