Simmons–Smith reaction

Definition

The Simmons–Smith reaction is a chemical process where a methylene (CH2) group is introduced into an alkene, converting it to a cyclopropane. This transformation involves the use of a zinc-copper couple and diiodomethane as reactants.

Related terms

Alkene:

Unsaturated hydrocarbons containing at least one carbon-carbon double bond.

Cyclopropane:

A cycloalkane composed of three carbon atoms arranged in a ring structure, with single bonds connecting them.

Zinc:

copper couple - A reagent used in organic synthesis, made by treating zinc with copper salts, often used to activate carbenoids like those in the Simmons-Smith reaction