Chain reaction

Definition

In organic chemistry, a chain reaction is a sequence of reactions where a reactive intermediate, often a free radical, initiates and propagates multiple steps that lead to the formation of products, with the process potentially continuing until terminated. This self-sustaining mechanism amplifies the effect of a single reactant through successive stages.

Related terms

Free Radical: An atom or molecule containing an unpaired electron, highly reactive and key in initiating chain reactions in organic chemistry.

Propagation: The step in a chain reaction where radicals react with stable molecules to create new radicals, perpetuating the reaction cycle.

Termination: The process in which reactive intermediates, such as free radicals, combine in a way that halts the chain reaction, effectively stopping the production of further products