Illustrated Glossary of Organic Chemistry

Hunsdiecker reaction: A name reaction in which a Ag+ carboxylate salt is reacted with Br2 in CCl4, resulting in substitution of the carboxyl group with a bromine atom. The reaction mechanism involves decarboxylation to a carbon radical, which then abstracts a bromine atom from Br2.

Silver octanoate

In a typical Hunsdiecker reaction, silver octanoate is reacted with Br2 in CCl4 to form 1-bromoheptane. The extra carbon atom is lost as a molecule of carbon dioxide.