• Thumbnail for Raney nickel
    Raney nickel /ˈreɪniː ˈnɪkəl/, also called spongy nickel, is a fine-grained solid composed mostly of nickel derived from a nickel–aluminium alloy. Several...
    24 KB (2,469 words) - 10:46, 19 August 2024
  • chloroethyl species gives 2-vinylthiophene. Desulfurization of thiophene with Raney nickel affords butane. When coupled with the easy 2,5-difunctionalization of...
    23 KB (2,258 words) - 11:33, 16 February 2024
  • Thumbnail for Hydrogenation
    imine using a Raney nickel catalyst, a popular heterogeneous catalyst. Partial hydrogenation of a resorcinol derivative using a Raney-Nickel catalyst. Hydrogenation...
    38 KB (4,071 words) - 16:46, 23 June 2024
  • politician and businessman Murray Raney (1885–1966), American mechanical engineer; inventor of Raney nickel Paul Hartley Raney (1892–1917), Canadian fighter...
    1 KB (205 words) - 14:32, 20 June 2023
  • dithioacetal structure is then hydrogenolyzed using Raney nickel. Raney nickel is converted irreversibly to nickel sulfide. This method is milder than either the...
    3 KB (318 words) - 13:33, 1 March 2022
  • Murray Raney (October 14, 1885 – March 3, 1966) was an American mechanical engineer born in Carrollton, Kentucky. He was the developer of a nickel catalyst...
    7 KB (804 words) - 13:17, 29 August 2022
  • Thumbnail for Nickel
    reactions. Raney nickel, a finely divided nickel-aluminium alloy, is one common form, though related catalysts are also used, including Raney-type catalysts...
    89 KB (9,740 words) - 09:36, 21 June 2024
  • They are claimed to be more effective hydrogenation catalysts than Raney nickel. These catalysts originate during World War II with the work of a research...
    13 KB (1,533 words) - 19:12, 13 September 2023
  • as: Catalytic hydrogenation using: Raney nickel or palladium-on-carbon, platinum(IV) oxide, or Urushibara nickel. Iron in acidic media. Sodium hydrosulfite...
    14 KB (1,485 words) - 13:12, 20 July 2023
  • Urushibara nickel is a nickel-based hydrogenation catalyst. It is a heterogeneous catalyst, comparable to Raney nickel. Urushibara nickel is however not...
    5 KB (521 words) - 04:53, 12 February 2024
  • Thumbnail for Nickel(II) nitrate
    alumina. Pyrolysis of the resulting material gives forms of Raney nickel and Urushibara nickel. In homogeneous catalysis, the hexahydrate is a precatalyst...
    6 KB (391 words) - 23:51, 11 February 2024
  • Thumbnail for Phenyl-2-nitropropene
    lithium aluminium hydride (LAH), sodium borohydride,aluminum amalgam or Raney nickel are used in suitable solvents like isopropyl alcohol or tetrahydrofuran...
    10 KB (805 words) - 11:37, 5 January 2024
  • amines. Catalysts for the reaction often include group 10 metals such as Raney nickel, palladium black, or platinum dioxide. However, other catalysts, such...
    7 KB (738 words) - 21:47, 29 July 2022
  • Thumbnail for Sugar alcohol
    sorbitol and mannitol are obtained by hydrogenation of sugars, using Raney nickel catalysts. The conversion of glucose and mannose to sorbitol and mannitol...
    12 KB (1,197 words) - 07:17, 22 August 2024
  • Thumbnail for Xylitol
    Purified xylose is catalytically hydrogenated into xylitol using a Raney nickel catalyst. The conversion changes the sugar (xylose, an aldehyde) into...
    28 KB (2,773 words) - 17:47, 23 August 2024
  • issue is the formation of MIBK and other self-condensation products. Raney nickel was one of the original industrial catalysts, modern catalysts are often...
    32 KB (3,083 words) - 01:08, 18 July 2024
  • form RMgX) Used hydrogenation catalysts such as palladium on carbon or Raney nickel (especially hazardous because of the adsorbed hydrogen) Iron(II) sulfide:...
    9 KB (813 words) - 18:40, 29 June 2024
  • Thumbnail for Transamination
    R'NH− → RR'NH + NH2− Symmetric secondary amines can be prepared using Raney nickel (2RNH2 → R2NH + NH3). And finally, quaternary ammonium salts can be dealkylated...
    5 KB (570 words) - 12:52, 22 July 2024
  • cyclisation. In the above scheme, the reductive cyclisation is effected by Raney nickel and hydrazine. Palladium-on-carbon and hydrogen, stannous chloride, sodium...
    4 KB (473 words) - 09:29, 14 June 2023
  • Thumbnail for Pyridine
    bipyridines. Radical dimerization of pyridine with elemental sodium or Raney nickel selectively yields 4,4'-bipyridine, or 2,2'-bipyridine, which are important...
    76 KB (7,637 words) - 04:04, 15 July 2024
  • Thumbnail for Procaine
    Nitrocaine. Finally, the nitro group is reduced by hydrogenation over Raney nickel catalyst. Chloroprocaine Peter DeMarco Procaine blockade "How long does...
    12 KB (1,132 words) - 03:24, 21 July 2024
  • Thumbnail for Isomalt
    isomaltulose synthase. The isomaltulose is then hydrogenated using a Raney nickel catalyst, producing 1,1-GPM and 1,6-GPS. The product consists of a mixture...
    9 KB (774 words) - 12:45, 14 November 2023
  • Thumbnail for Hexamethylenediamine
    the triamine bis(hexamethylenetriamine). An alternative process uses Raney nickel as the catalyst and adiponitrile that is diluted with hexamethylenediamine...
    10 KB (747 words) - 02:44, 16 February 2024
  • Thumbnail for Palladium on carbon
    carbon Platinum dioxide Rhodium-platinum oxide Lindlar catalyst Raney nickel Urushibara nickel Nishimura, Shigeo (2001). Handbook of Heterogeneous Catalytic...
    5 KB (419 words) - 04:22, 31 May 2024
  • Thumbnail for 2,2′-Bipyridine
    2 CO2 + ... It is prepared by the dehydrogenation of pyridine using Raney nickel: 2 C5H5N → (C5H4N)2 + H2 Unsymmetrically substituted 2,2'-bipyridines...
    5 KB (317 words) - 14:36, 7 November 2023
  • Thumbnail for Ibuprofen
    catalytic hydrogenation of isobutylacetophenone is performed with either Raney nickel or palladium on carbon to lead into the key-step, the carbonylation of...
    60 KB (5,863 words) - 17:15, 10 August 2024
  • Thumbnail for Metronidazole
    ethylenediamine and acetic acid, followed by treatment with lime, then Raney nickel. 2-Methylimidazole is nitrated to give 2-methyl-4(5)-nitroimidazole (2)...
    57 KB (5,270 words) - 22:28, 15 August 2024
  • Thumbnail for Paracetamol
    4-nitrophenol, which is reduced to 4-aminophenol by hydrogenation over Raney nickel. In another method, nitrobenzene is reduced electrolytically giving 4-aminophenol...
    123 KB (12,177 words) - 22:34, 15 August 2024
  • achieved by dealloying of Nickel-Zinc or Nickel-Aluminium alloys in alkaline solution, commonly referred to as Raney nickel. In cell tests the best performing...
    18 KB (1,647 words) - 12:46, 21 August 2024
  • Thumbnail for Heterogeneous catalysis
    below. Reduction of nitriles in the synthesis of phenethylamine with Raney nickel catalyst and hydrogen in ammonia: The cracking, isomerisation, and reformation...
    30 KB (3,239 words) - 20:28, 22 July 2024