Cyclization reactions
3,374 reactions: 10 worked examples with a reagent table you can scale, 503 named reactions and 2,861 checked procedures from Organic Syntheses.
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- Allan–Robinson reactionCyclization The Allan–Robinson reaction is the chemical reaction of o-hydroxyaryl ketones with aromatic anhydrides to form flavones (or isoflavones).
- Bergman cyclizationCyclization The Masamune-Bergman cyclization or Masamune-Bergman reaction or Masamune-Bergman cycloaromatization is an organic reaction and more specifically a rearrangement reaction taking place when an enediyne is heated in presence of a suitable hydrogen donor (Scheme 1).
- Borsche–Drechsel cyclizationCyclization The Borsche–Drechsel cyclization is a chemical reaction used to synthesize tetrahydrocarbazoles by the acid-catalyzed cyclization of cyclohexanone arylhydrazones.
- Danheiser annulationCyclization The Danheiser annulation or Danheiser TMS-cyclopentene annulation is an organic reaction of an α,β-unsaturated ketone and a trialkylsilylallene (e.g., trimethylsilyl- or triisopropylsilyl-) in the presence of a Lewis Acid to give a trialkylsilylcyclopentene in a regiocontrolled annulation.
- Danheiser benzannulationCyclization The Danheiser benzannulation is a chemical reaction used in organic chemistry to generate highly substituted phenols in a single step.
- Ferrier carbocyclizationCyclization The Ferrier carbocyclization (or Ferrier II reaction) is an organic reaction that was first reported by the carbohydrate chemist Robert J. Ferrier in 1979.
- Nazarov cyclizationCyclization The Nazarov cyclization, also known as the Nazarov reaction, is a chemical reaction used in organic chemistry for the synthesis of cyclopentenones.
- Pschorr cyclizationCyclization The Pschorr cyclization is a name reaction in organic chemistry, which was named after its discoverer, the German chemist Robert Pschorr (1868-1930).
- Robinson annulationCyclization The Robinson annulation is a chemical reaction used in organic chemistry for ring formation.
- Robinson–Gabriel synthesisCyclization The Robinson–Gabriel synthesis is an organic reaction in which a 2-acylamino-ketone reacts intramolecularly followed by a dehydration to give an oxazole.
- Volhard–Erdmann cyclizationCyclization The Volhard–Erdmann cyclization is an organic synthesis of alkyl and aryl thiophenes by cyclization of disodium succinate or other 1,4-difunctional compounds (γ-oxo acids, 1,4-diketones, chloroacetyl-substituted esters) with phosphorus heptasulfide.