• Thumbnail for Wilkinson's catalyst
    Wilkinson's catalyst (chlorido­tris(triphenylphosphene)­rhodium(I)) is a coordination complex of rhodium with the formula [RhCl(PPh3)3], where 'Ph' denotes...
    13 KB (1,209 words) - 06:07, 24 February 2024
  • Thumbnail for Geoffrey Wilkinson
    the complexes of transition metals. Wilkinson is well known for his popularisation of the use of Wilkinson's catalyst RhCl(PPh3)3 in catalytic hydrogenation...
    11 KB (849 words) - 08:02, 26 May 2024
  • Thumbnail for Hydrogenation
    carvone using a homogeneous catalyst (Wilkinson's catalyst). Partial hydrogenation of phenylacetylene using the Lindlar catalyst. Hydrogenation of an imine...
    38 KB (4,071 words) - 21:44, 8 May 2024
  • Thumbnail for Metal-phosphine complex
    Prominent examples of metal phosphine complexes include Wilkinson's catalyst (Rh(PPh3)3Cl), Grubbs' catalyst, and tetrakis(triphenylphosphine)palladium(0). Many...
    14 KB (1,418 words) - 02:14, 5 December 2023
  • homogeneous catalysis is catalysis where the catalyst is in same phase as reactants, principally by a soluble catalyst a in solution. In contrast, heterogeneous...
    8 KB (894 words) - 10:52, 16 January 2024
  • Thumbnail for Induction period
    this transformation, hence the induction period. For example, with Wilkinson's catalyst, one triphenylphosphine ligand must dissociate to give the coordinatively...
    2 KB (264 words) - 13:18, 4 January 2024
  • Thumbnail for Crabtree's catalyst
    Crabtree’s catalyst is effective for the hydrogenations of mono-, di-, tri-, and tetra-substituted substrates. Whereas Wilkinson’s catalyst and the Schrock–Osborn...
    13 KB (1,187 words) - 14:26, 28 February 2024
  • Thumbnail for Catalysis
    Catalysis (redirect from Catalyst)
    Some so-called catalysts are really precatalysts. Precatalysts convert to catalysts in the reaction. For example, Wilkinson's catalyst RhCl(PPh3)3 loses...
    45 KB (5,114 words) - 12:51, 30 May 2024
  • Thumbnail for Rhodium
    Rhodium (section Catalyst)
    best-known rhodium-halogen compound is the Wilkinson's catalyst chlorotris(triphenylphosphine)rhodium(I). This catalyst is used in the hydroformylation or hydrogenation...
    30 KB (3,647 words) - 17:13, 31 May 2024
  • Wilkinson Wilkinson Creek (disambiguation) Wilkinson v. United States, a law case heard by the US Supreme Court Wilkinson's catalyst, a chemical catalyst Wilkinson's...
    2 KB (240 words) - 12:01, 12 October 2023
  • name recognizes Jirō Tsuji, whose team first reported the use of Wilkinson's catalyst (RhCl(PPh3)3) for these reactions: RC(O)X + RhCl(PPh3)3 → RX + RhCl(CO)(PPh3)2...
    7 KB (746 words) - 21:23, 21 July 2023
  • that catalyze hydrogenation are often effective catalysts for hydrosilylation, e.g. Wilkinson's catalyst. "Hydrosilylation A Comprehensive Review on Recent...
    8 KB (964 words) - 05:59, 9 May 2024
  • Thumbnail for Hydride
    and other purposed aspects of a hydrogen economy. Hydride complexes are catalysts and catalytic intermediates in a variety of homogeneous and heterogeneous...
    21 KB (2,333 words) - 12:44, 22 May 2024
  • to degradation by various chemicals as well as ozone. Typically, Wilkinson's catalyst is used to promote the hydrogenation. The nitrile groups are unaffected...
    13 KB (1,506 words) - 13:05, 30 April 2024
  • Thumbnail for Organorhodium chemistry
    {aldehydes}{RCH2CH2CHO}}}}} Wilkinson's catalyst is used as a homogeneous catalyst for the hydrogenation of olefins. The mechanism...
    10 KB (1,125 words) - 13:44, 11 October 2023
  • Thumbnail for Square planar molecular geometry
    carboplatin. Many homogeneous catalysts are square planar in their resting state, such as Wilkinson's catalyst and Crabtree's catalyst. Other examples include...
    5 KB (451 words) - 04:50, 4 November 2023
  • examples of homogeneous catalysis. In 1975, Kono and Ito reported that Wilkinson's catalyst (Rh(PPh3)3Cl) can undergo oxidative addition with catecholborane...
    16 KB (1,771 words) - 22:52, 19 November 2023
  • Well's salt (CsAuCl3) White catalyst ((PhS(O)CH2CH2S(O)Ph).Pd(OAc)2) Wij's Solution (ICl / acetic acid) Wilkinson's catalyst (RhCl(PPh3)3) Wolffram's Red...
    11 KB (852 words) - 15:53, 23 April 2024
  • products are easily separated from the catalyst. Dehydrogenative coupling of primary silanes using Wilkinson's catalyst is slow and dependent on the removal...
    9 KB (1,021 words) - 20:49, 10 May 2024
  • Thumbnail for Triphenylphosphine
    Tris(o-tolyl)phosphine Decyl(triphenyl)phosphonium Vaska's complex Wilkinson's catalyst Bis(triphenylphosphine)nickel(II) dichloride Bis(triphenylphosphine)palladium(II)...
    18 KB (1,624 words) - 16:57, 12 June 2024
  • Thumbnail for Enantioselective synthesis
    achiral triphenylphosphine ligands in Wilkinson's catalyst with chiral phosphine ligands. This experimental catalyst was employed in an asymmetric hydrogenation...
    41 KB (4,726 words) - 05:21, 27 May 2024
  • work on the iridium analogue of Wilkinson's catalyst which he began at University College with Milner. Wilkinson's catalyst can be prepared by reducing rhodium(III)...
    7 KB (642 words) - 08:10, 4 September 2023
  • Thumbnail for Phosphorus-31 nuclear magnetic resonance
    31P-NMR spectrum of Wilkinson's catalyst (RhCl(PPh3)3) in toluene solution. In addition to 31P–31P coupling between the two types of phosphine centers...
    6 KB (750 words) - 18:25, 27 April 2024
  • reaction required tin tetrachloride and a stoichiometric amount of Wilkinson's catalyst: An equal amount of a cyclopropane was formed as the result of decarbonylation...
    5 KB (604 words) - 05:49, 22 March 2024
  • Thumbnail for Rhodium(III) chloride
    rhodium(I) derivatives. A famous derivative is [RhCl(PPh3)3] known as Wilkinson's catalyst. Either the ethanol solvent or the phosphine serves as reductant:...
    20 KB (1,965 words) - 19:25, 3 June 2024
  • Thumbnail for Allenes
    catalyze the cyclooligomerization of allene. Using a suitable catalyst (e.g. Wilkinson's catalyst), it is possible to reduce just one of the double bonds of...
    37 KB (4,081 words) - 22:02, 21 February 2024
  • increases the turnover rate of the catalyst. Unlike other Rh(I) catalysts, the rhodium analogue of Wilkinson's catalyst RhCl(PHCy2)3 (Cy=cyclohexyl) behaves...
    9 KB (979 words) - 22:38, 30 October 2022
  • hydrogenation catalysts by replacing the achiral triphenylphosphine ligands in Wilkinson's catalyst with chiral phosphine ligands. This experimental catalyst was...
    8 KB (687 words) - 13:22, 16 April 2024
  • example with chalcone, a reaction catalysed by diethyl zinc and Wilkinson's catalyst: Trifluoromethyl sulfone (PhSO2CF3) and trifluoromethyl sulfoxide...
    43 KB (4,064 words) - 06:38, 27 April 2024
  • acyl hydrides. An example of this is the Tsuji–Wilkinson decarbonylation reaction using Wilkinson's catalyst. (Strictly speaking, the noncatalytic version...
    8 KB (1,084 words) - 23:41, 22 January 2024