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  • Letts Nitrile Synthesis
  • Letts Nitrile Synthesis E. A. Letts, Ber. 5, 669 (1872). Formation of nitriles by heating aromatic carboxylic acids with metal thiocyanates:
  • Lebedev Process
  • Lebedev Process S. V. Lebedev, Zh. Obshch. Khim. 3, 698 (1933). Formation of butadiene from ethanol by catalytic pyrolysis. The catalysts used are mixtu
  • Ladenburg Rearrangement
  • Ladenburg Rearrangement A. Ladenburg, Ber. 16, 410 (1883); Ann. 247, 1 (1888). Thermal rearrangement of an alkyl- or benzylpyridinium halide to an alkyl
  • Kuhn-Winterstein Reaction
  • Kuhn-Winterstein Reaction R. Kuhn, A. Winterstein, Helv. Chim. Acta 11, 87 (1928). Conversion of 1,2-glycols into trans olefins by reaction with diphosp
  • Kucherov Reaction
  • Kucherov Reaction M. Kucherov, Ber. 14, 1540 (1881). Hydration of acetylenic hydrocarbons with dilute sulfuric acid in the presence of mercuric sulfate
  • Kröhnke Pyridine Synthesis
  • Kröhnke Synthesis W. Zecher, F. Kröhnke, Ber. 94, 690, 698 (1961); eidem, Angew. Chem. Int. Ed. 1, 626 (1962). 1,4-Michael addition, q.v., of
  • Kröhnke Oxidation
  • Kröhnke Oxidation F. Kröhnke et al., Ber. 69, 2006 (1936); 71, 2583 (1938); 72, 440 (1939). Transformation of activated halides into aldehydes
  • Petrenko-Kritschenko Piperidone Synthesis
  • Petrenko-Kritschenko Piperidone Synthesis P. Petrenko-Kritschenko et al., Ber. 39, 1358 (1906); 40, 2882 (1907); 41, 1692 (1908); 42, 2020, 3683 (1909).
  • Krapcho Decarbalkoxylation
  • Krapcho Decarbalkoxylation A. P. Krapcho et al., Tetrahedron Letters 1967, 215. The decarbalkoxylation of malonate esters, β-keto esters, α-c
  • Krafft Degradation
  • Krafft Degradation F. Krafft, Ber. 12, 1664 (1879). Conversion of carboxylic acids, especially of high molecular weight, into the next lower homolog by
  • Kostanecki Acylation
  • Kostanecki Acylation S. von Kostanecki, A. Rozycki, Ber. 34, 102 (1901). Formation of chromones or coumarins by acylation of o-hydroxyaryl ketones with
  • Kolbe-Schmitt Reaction
  • Kolbe-Schmitt Reaction H. Kolbe, Ann. 113, 125 (1860); R. Schmitt, J. Prakt. Chem. [2] 31, 397 (1885). Formation of aromatic hydroxy acids by carboxylat
  • Kochi Reaction
  • Kochi Reaction J. K. Kochi, J. Am. Chem. Soc. 87, 2500 (1965). Synthesis of organic chlorides by decarboxylation of carboxylic acids in the presence of
  • Knorr Quinoline Synthesis
  • Knorr Synthesis L. Knorr, Ann. 236, 69 (1886); 245, 357, 378 (1888). Formation of α-hydroxyquinolines from β-ketoesters and arylamines above
  • Knorr Pyrrole Synthesis
  • Knorr Pyrrole Synthesis L. Knorr, Ber. 17, 1635 (1884); Ann. 236, 290 (1886); L. Knorr, H. Lange, Ber. 35, 2998 (1902). Formation of pyrrole derivatives
  • Knorr Pyrazole Synthesis
  • Knorr Synthesis L. Knorr, Ber. 16, 2587 (1883). Formation of pyrazole derivatives from hydrazines, hydrazides, semicarbazides, and aminoguanidines by c
  • Paal-Knorr Pyrrole Synthesis
  • Paal-Knorr Pyrrole Synthesis C. Paal, Ber. 18, 367 (1885); L. Knorr, ibid. 299. Formation of pyrroles via cyclization of 1,4-dicarbonyl compounds with a
  • Koenigs-Knorr Synthesis
  • Koenigs-Knorr Synthesis W. Koenigs, E. Knorr, Ber. 34, 957 (1901). Formation of glycosides from acetylated glycosyl halides and alcohols or phenols in t
  • Knoop-Oesterlin Amino Acid Synthesis
  • Knoop-Oesterlin Amino Acid Synthesis F. Knoop, H. Oesterlin, Z. Physiol. Chem. 148, 294 (1925). Preparation of α-amino acids by catalytic hydrogen
  • Kishner Cyclopropane Synthesis
  • Kishner Synthesis N. M. Kishner, A. Zavadovskii, J. Russ. Phys. Chem. Soc. 43, 1132 (1911). Formation of cyclopropane derivatives by decomposition of p
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