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.
409–432 of 3,374
- 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.
- Rosenmund reductionReduction The Rosenmund reduction is a hydrogenation process in which an acyl chloride is selectively reduced to an aldehyde.
- Rosenmund–von Braun reaction The Rosenmund–von Braun synthesis is an organic reaction in which an aryl halide reacts with cuprous cyanide to yield an aryl nitrile.
- Roskamp reaction In organic chemistry, the Roskamp reaction is a name reaction describing the reaction between α-diazoesters (such as ethyl diazoacetate) and aldehydes to form β-ketoesters, often utilizing various Lewis acids (such as BF3, SnCl2, and GeCl2) as catalysts.
- Rothemund reaction The Rothemund reaction is a condensation/oxidation process that converts four pyrroles and four aldehydes into a porphyrin.
- Rubottom oxidationOxidation The Rubottom oxidation is a useful, high-yielding chemical reaction between silyl enol ethers and peroxyacids to give the corresponding α-hydroxy carbonyl product.
- Ruff degradation Ruff degradation is a reaction used to shorten the open chain forms of monosaccharides.
- Sabatier reaction The Sabatier reaction or Sabatier process produces methane and water from a reaction of hydrogen with carbon dioxide at elevated temperatures (optimally 300–400 °C) and pressures (perhaps 3 megapascals; 440 psi; 30 bar) in the presence of a nickel catalyst.
- Saegusa–Ito oxidationOxidation The Saegusa–Ito oxidation is a chemical reaction used in organic chemistry.
- Sakurai reaction The Sakurai reaction (also known as the Hosomi–Sakurai reaction) is the chemical reaction of carbon electrophiles (such as a ketone shown here) with allyltrimethylsilane catalyzed by strong Lewis acids.
- Sandmeyer reaction The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as reagents or catalysts.
- Sarett oxidationOxidation The Sarett oxidation is an organic reaction that oxidizes primary and secondary alcohols to aldehydes and ketones, respectively, using chromium trioxide and pyridine.
- Saville reaction The Saville reaction is a chemical reaction in which mercury replaces a nitrosyl from a thiol group.
- Schikorr reaction The Schikorr reaction formally describes the conversion of the iron(II) hydroxide (Fe(OH)2) into iron(II,III) oxide (Fe3O4).
- Schmidt reactionRearrangement In organic chemistry, the Schmidt reaction is an organic reaction in which an azide reacts with a carbonyl derivative, usually an aldehyde, ketone, or carboxylic acid, under acidic conditions to give an amine or amide, with expulsion of nitrogen.
- Scholl reaction The Scholl reaction is a coupling reaction between two arene compounds with the aid of a Lewis acid and a protic acid.
- Schöllkopf method The Schöllkopf method or Schöllkopf Bis-Lactim Amino Acid Synthesis is a method in organic chemistry for the asymmetric synthesis of chiral amino acids.
- Schotten–Baumann reaction The Schotten–Baumann reaction is a method to synthesize amides from amines and acid chlorides.
- Seyferth–Gilbert homologation The Seyferth–Gilbert homologation is a chemical reaction of an aryl ketone 1 (or aldehyde) with dimethyl (diazomethyl)phosphonate 2 and potassium tert-butoxide to give substituted alkynes 3.
- Shapiro reaction The Shapiro reaction or tosylhydrazone decomposition is an organic reaction in which a ketone or aldehyde is converted to an alkene through an intermediate hydrazone in the presence of 2 equivalents of organolithium reagent.
- Sharpless asymmetric dihydroxylation Sharpless asymmetric dihydroxylation (also called the Sharpless bishydroxylation) is the chemical reaction of an alkene with osmium tetroxide in the presence of a chiral quinine ligand to form a vicinal diol.
- Sharpless epoxidationOxidation The Sharpless epoxidation reaction is an enantioselective chemical reaction to prepare 2,3-epoxyalcohols from primary and secondary allylic alcohols.
- Sharpless oxyamination The Sharpless oxyamination (often known as Sharpless aminohydroxylation) is the chemical reaction that converts an alkene to a vicinal amino alcohol.
- Shi epoxidationOxidation The Shi epoxidation is a chemical reaction, as the asymmetric epoxidation of alkenes with oxone (potassium peroxymonosulfate) and a fructose-derived catalyst (1).
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