# Simmons-Smith reaction

> English word · Noun

## Definitions
1. An organic cheletropic chemical reaction in which a carbenoid reacts with an alkene (or alkyne) to form a cyclopropane.

## Etymology
After Howard Ensign Simmons, Jr. and R. D. Smith.

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