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.
241–264 of 3,374
- Hirao couplingCross-coupling In organic chemistry, Hirao coupling is a chemical reaction for the formation of carbon-phosphorus bonds using palladium cross-coupling.
- Hiyama couplingCross-coupling The Hiyama coupling is a palladium-catalyzed cross-coupling reaction of organosilanes with organic halides used in organic chemistry to form carbon–carbon bonds (C-C bonds).
- Hoesch reaction The Hoesch reaction or Houben–Hoesch reaction is an organic reaction in which a nitrile reacts with an arene compound to form an aryl ketone.
- Hofmann eliminationRearrangement Hofmann elimination is an elimination reaction of an amine to form alkenes.
- Hofmann rearrangementRearrangement The Hofmann rearrangement (Hofmann degradation) is the organic reaction of a primary amide to a primary amine with one less carbon atom.
- Hofmann–Löffler reactionRearrangement In organic chemistry, the Hofmann–Löffler reaction (also referred to as Hofmann–Löffler–Freytag reaction, Löffler–Freytag reaction, Löffler–Hofmann reaction, as well as Löffler's method) is a radical amine cyclization, forming a 5- (or in rare cases, 6-) membered ring.
- Homo-Favorskii rearrangementRearrangement The homo Favorskii rearrangement is the rearrangement of β-halo ketones and cyclobutanones, which in ring systems may yield ring contraction.
- Hooker reaction In the Hooker reaction (1936) an alkyl chain in a certain naphthoquinone (phenomenon first observed in the compound lapachol) is reduced by one methylene unit as carbon dioxide in each potassium permanganate oxidation.
- Horner–Wadsworth–Emmons reaction The Horner–Wadsworth–Emmons (HWE) reaction is a chemical reaction used in organic chemistry of stabilized phosphonate carbanions with aldehydes (or ketones) to produce predominantly E-alkenes.
- Hummers' method Hummers' method is a chemical process that can be used to generate graphite oxide through the addition of potassium permanganate to a solution of graphite, sodium nitrate, and sulfuric acid.
- Hunsdiecker reaction The Hunsdiecker reaction (also called the Borodin reaction or the Hunsdiecker–Borodin reaction) is a name reaction in organic chemistry whereby silver salts of carboxylic acids react with a halogen to produce an organic halide.
- Hurd–Mori 1,2,3-thiadiazole synthesis The Hurd–Mori 1,2,3-thiadiazole synthesis is a name reaction in organic chemistry that allows for the generation of 1,2,3-thiadiazoles through the reaction of hydrazone derivatives with an N-acyl or N-tosyl group reacted with thionyl chloride.
- Intramolecular Diels–Alder cycloadditionCycloaddition In organic chemistry, an intramolecular Diels-Alder cycloaddition is a Diels–Alder reaction in which the diene and the dienophile are both part of the same molecule.
- Inverse electron-demand Diels–Alder reaction The inverse electron demand Diels–Alder reaction, or DAINV or IEDDA is an organic chemical reaction, in which two new chemical bonds and a six-membered ring are formed.
- Ireland–Claisen rearrangementRearrangement The Ireland–Claisen rearrangement is a chemical reaction of an allylic ester with strong base to give an γ,δ-unsaturated carboxylic acid.
- Isay reaction The Isay reaction also known as Gabriel-Isay condensation is an organic reaction in which certain diaminopyrimidines are transformed into pterins by condensation with a 1,2-dicarbonyl compound, such as 2,3-butanedione.
- Ivanov reaction The Ivanov reaction is a carbon–carbon bond-forming chemical reaction involving the addition of dianions (endiolates) of aryl acetic acids (Ivanov reagents) with electrophilic substrates such as aldehydes, ketones, isocyanates, or alkyl halides, resulting in β‑hydroxy acids.
- Jacobsen epoxidationOxidation The Jacobsen epoxidation, sometimes also referred to as Jacobsen-Katsuki epoxidation is a chemical reaction which allows enantioselective epoxidation of unfunctionalized alkyl- and aryl- substituted alkenes.
- Jacobsen rearrangementRearrangement The Jacobsen rearrangement is a chemical reaction, commonly described as the migration of an alkyl group in a sulfonic acid derived from a polyalkyl- or polyhalobenzene.
- Jaffe reaction The Jaffe reaction is a colorimetric method used in clinical chemistry to determine creatinine levels in blood and urine.
- Japp–Klingemann reaction The Japp–Klingemann reaction is a chemical reaction used to synthesize hydrazones from β-keto-acids (or β-keto-esters) and aryl diazonium salts.
- Japp–Maitland condensationCondensation The Japp–Maitland condensation is an organic reaction and a type of Aldol reaction and a tandem reaction.
- Jocic reaction In organic chemistry, the Jocic reaction, also called the Jocic–Reeve reaction (named after Zivojin Jocic and Wilkins Reeve) is a name reaction that generates α-substituted carboxylic acids from trichloromethylcarbinols and corresponding nucleophiles in the presence of sodium hydroxide.
- Johnson–Corey–Chaykovsky reaction The Johnson–Corey–Chaykovsky reaction (sometimes referred to as the Corey–Chaykovsky reaction or CCR) is a chemical reaction used in organic chemistry for the synthesis of epoxides, aziridines, and cyclopropanes.
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