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Chichibabin pyridine synthesis

Chichibabin pyridine synthesis
Named after Aleksei Chichibabin
Reaction type Ring forming reaction
Identifiers
RSC ontology ID RXNO:0000526

The Chichibabin pyridine synthesis (/ˈiiˌbbin/ CHEE-chee-BAY-been) is a method for synthesizing pyridine rings. In its general form, the reaction can be described as a condensation reaction of aldehydes, ketones, α,β-Unsaturated carbonyl compounds, or any combination of the above, in ammonia or ammonia derivatives. It was reported by Aleksei Chichibabin in 1924. The following is the overall form of the general reaction:

The elementary contributing steps of the reaction mechanism can be classified as more familiar name reactions, including an imine synthesis, a base-catalyzed aldol condensation, and initiating the ring-synthesis step, a Michael reaction.

Chichibabin pyridine synthesis


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