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  • Stephen Aldehyde Synthesis
  • Stephen Aldehyde Synthesis H. Stephen, J. Chem. Soc. 127, 1874 (1925); T. Stephen, H. Stephen, ibid. 1956, 4695. Reaction sequence employed to convert n
  • Staudinger Reaction
  • Staudinger Reaction H. Staudinger, J. Meyer, Helv. Chim. Acta 2, 635 (1919). Synthesis of phosphazo compounds by the reaction of tertiary phosphines wit
  • Sommelet Reaction
  • Sommelet Reaction M. Sommelet, Compt. Rend. 157, 852 (1913); Bull. Soc. Chim. France [4] 23, 95 (1918). Preparation of aldehydes from aralkyl halides by
  • Smiles Rearrangement
  • Smiles Rearrangement; Truce-Smiles Rearrangement A. A. Levi et al., J. Chem. Soc. 1931, 3264; W. J. Evans, S. Smiles, ibid. 1935, 181; 1936, 329. Intram
  • Skraup Reaction
  • Skraup Reaction Z. H. Skraup, Ber. 13, 2086 (1880). Synthesis of quinolines from aromatic amines, glycerol, an oxidizing agent and sulfuric acid:
  • Simonis Chromone Cyclization
  • Simonis Chromone Cyclization E. Petschek, H. Simonis, Ber. 46, 2014 (1913). Formation of chromones from phenol and β-keto esters in the presence of
  • Simonini Reaction
  • Simonini Reaction A. Simonini, Monatsh. 13, 320 (1892); 14, 81 (1893). The preparation of aliphatic esters by the reaction of the silver salt of a carbo
  • Simmons-Smith Reaction
  • Simmons-Smith Reaction H. E. Simmons, R. D. Smith, J. Am. Chem. Soc. 80, 5323 (1958). Stereospecific synthesis of cyclopropanes by treatment of olefins
  • Sharpless Oxyamination
  • Sharpless Oxyamination K. B. Sharpless et al., J. Am. Chem. Soc. 97, 2305 (1975). -mediated cis-addition of nitrogen and oxygen moieties to mono-, di- a
  • Sharpless Epoxidation
  • Sharpless Epoxidation T. Katsuki, K. B. Sharpless, J. Am. Chem. Soc. 102, 5974 (1980). -catalyzed asymmetric epoxidation of allylic alcohols employing t
  • Sharpless Dihydroxylation
  • Sharpless Dihydroxylation E. N. Jacobsen et al., J. Am. Chem. Soc. 110, 1968 (1988). -catalyzed asymmetric cis-dihydroxylation of olefins:
  • Serini Reaction
  • Serini Reaction A. Serini et al., Ber. 72, 391 (1939). -promoted rearrangement of 17-hydroxy-20-acetoxysterol derivatives into C-20 ketones; the reactio
  • Semmler-Wolff Reaction
  • Semmler-Wolff Reaction (Wolff-Semmler Aromatization, Wolff Aromatization) W. Semmler, Ber. 25, 3352 (1892); L. Wolff, Ann. 322, 351 (1902). Rearrangemen
  • Schöllkopf Bis-Lactim Amino Acid Synthesis
  • Schöllkopf Bis-Lactim Amino Acid Synthesis U. Schöllkopf et al., Angew. Chem. Int. Ed. 18, 863 (1979); 20, 798 (1981). Asymmetric amino acid s
  • Scholl Reaction
  • Scholl Reaction R. Scholl, C. Seer, Ann. 394, 111 (1912). Coupling of aromatic molecules by treatment with Lewis acid catalysts:
  • Schmidt Reaction
  • Schmidt Reaction R. F. Schmidt, Ber. 57, 704 (1924). Acid-catalyzed addition of hydrazoic acid to carboxylic acids, aldehydes and ketones to give amines
  • Sandmeyer Isonitrosoacetanilide Isatin Synthesis
  • Sandmeyer Isonitrosoacetanilide Isatin Synthesis T. Sandmeyer, Helv. Chim. Acta 2, 234 (1919). Formation of isonitrosoacetodiphenylamidine by condensati
  • Sandmeyer Diphenylurea Isatin Synthesis
  • Sandmeyer Diphenylurea Isatin Synthesis T. Sandmeyer, Z. Farb. Textile Chem. 2, 129 (1903). Formation of a cyanoformamidine by treatment of a symmetrica
  • Saegusa Oxidation
  • Saegusa Oxidation Y. Ito et al., J. Org. Chem. 43, 1011 (1978). Conversion of silyl enol ethers into corresponding α,β-eneones using stoichio
  • Sabatier-Senderens Reduction
  • Sabatier-Senderens Reduction P. Sabatier, J. B. Senderens, Compt. Rend. 128, 1173 (1899). Catalytic hydrogenation of organic compounds in the vapor phas
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