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  • Quelet Reaction
  • Quelet Reaction R. Quelet, Compt. Rend. 195, 155 (1932). Passage of dry hydrochloric acid through a solution in ligroin of a phenolic ether and an aliph
  • Pummerer Rearrangement
  • Pummerer Rearrangement R. Pummerer, Ber. 43, 1401 (1910). Rearrangement of sulfoxides to α-acyloxythioethers in the presence of acyclic anhydrides
  • Pschorr Reaction
  • Pschorr Reaction R. Pschorr, Ber. 29, 496 (1896). Synthesis of phenanthrene derivatives from diazotized α-aryl-o-aminocinnamic acids by intramolec
  • Prins Reaction
  • Prins Reaction H. J. Prins, Chem. Weekblad 16, 64, 1072, 1510 (1919), C.A. 13, 3155 (1919). Acid-catalyzed addition of olefins to formaldehyde to give 1
  • Prilezhaev (Prileschajew) Reaction
  • Prilezhaev (Prileschajew) Reaction N. Prilezhaev, Ber. 42, 4811 (1909). Formation of epoxides by the reaction of alkenes with peracids:
  • Prévost Reaction
  • Prévost Reaction C. Prévost, Compt. Rend. 196, 1129 (1933), C.A. 27, 3195 (1933). Hydroxylation of olefins with iodine and silver benzoate
  • Ponzio Reaction
  • Ponzio Reaction G. Ponzio, Gazz. Chim. Ital. 27, I, 171 (1897). Formation of dinitrophenylmethanes from benzaldoximes by oxidation with nitrogen dioxide
  • Polonovski Reaction
  • Polonovski Reaction; Potier-Polonovski Reaction M. Polonovski, M. Polonovski, Bull. Soc. Chim. France 41, 1190 (1927). Rearrangement of tertiary amine o
  • Piria Reaction
  • Piria Reaction R. Piria, Ann. 78, 31 (1851). Formation of arylsulfamic acids or sulfonation products or both by refluxing aromatic nitro compounds with
  • Pinner Triazine Synthesis
  • Pinner Triazine Synthesis A. Pinner, Ber. 23, 2919 (1890). Preparation of 2-hydroxy-4,6-diaryl-s-triazines by reaction of aryl amidines and phosgene. Th
  • Pinacol Rearrangement
  • Rearrangement R. Fittig, Ann. 114, 54 (1860). Acid-catalyzed rearrangement of vicinal diols to aldehydes or ketones:
  • Pinacol Coupling Reaction
  • Coupling Reaction R. Fittig, Ann. 110, 17 (1859). Formation of pinacols by a reductive radical-radical coupling of carbonyl compounds, especially keton
  • Piloty-Robinson Synthesis
  • Piloty-Robinson Synthesis O. Piloty, Ber. 43, 489 (1910); G. M. Robinson, R. Robinson, J. Chem. Soc. 43, 639 (1918). Formation of pyrroles by heating az
  • Pictet-Spengler Isoquinoline Synthesis
  • Pictet-Spengler Synthesis A. Pictet, T. Spengler, Ber. 44, 2030 (1911). Formation of tetrahydroisoquinoline derivatives by condensation of β-aryle
  • Pfitzinger Reaction
  • Pfitzinger Reaction W. Pfitzinger, J. Prakt. Chem. [2] 33, 100 (1886); 38, 582 (1888). Formation of -4-carboxylic acids by condensation of isatic acids
  • Pfau-Plattner Azulene Synthesis
  • Pfau-Plattner Synthesis A. St. Pfau, P. A. Plattner, Helv. Chim. Acta 22, 202 (1939). Formation of azulenes by ring enlargement of indanes on addition
  • Perkow Reaction
  • Perkow Reaction W. Perkow et al., Naturwiss. 39, 353 (1952). Formation of enol phosphates on treatment of α-halocarbonyl compounds with trialkyl p
  • Perkin Reaction
  • Perkin Reaction W. H. Perkin, J. Chem. Soc. 21, 53, 181 (1868); 31, 388 (1877). Formation of α,β-unsaturated carboxylic acids by aldol conden
  • Perkin Alicyclic Synthesis
  • Perkin Alicyclic Synthesis W. H. Perkin, Jr., Ber. 16, 1793 (1883). Synthesis of alicyclic compounds from α,ω-dihaloalkanes and compounds co
  • Pelouze Synthesis
  • Pelouze Synthesis J. Pelouze, Ann. 10, 249 (1834). Formation of nitriles from alkali cyanides by alkylation with alkyl sulfates or alkyl phosphates:
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