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  2. Wilkinson's catalyst - Wikipedia

    en.wikipedia.org/wiki/Wilkinson's_catalyst

    Wilkinson's catalyst (chlorido­tris(triphenylphosphine)­rhodium(I)) is a coordination complex of rhodium with the formula [RhCl(PPh 3) 3], where 'Ph' denotes a phenyl group. It is a red-brown colored solid that is soluble in hydrocarbon solvents such as benzene, and more so in tetrahydrofuran or chlorinated solvents such as dichloromethane .

  3. Tsuji–Wilkinson decarbonylation reaction - Wikipedia

    en.wikipedia.org/wiki/Tsuji–Wilkinson...

    The Tsuji–Wilkinson decarbonylation proceeds under mild conditions and is highly stereospecific. In addition to aliphatic, aromatic, and α,β-unsaturated aldehydes, acyl nitriles and 1,2-diketones are also suitable substrates. Few methods exist for decarbonylation. One illustrative application is the synthesis of the core nucleus of FR ...

  4. Metal-catalysed hydroboration - Wikipedia

    en.wikipedia.org/wiki/Metal-catalysed_hydroboration

    The difference in regioselectivity is more pronounced in the hydroboration of vinylarenes with HBcat. Wilkinson's catalyst or the cation Rh(COD) 2 (in the presence of PPh 3) produces the Markovnikov product. [12] [13] The anti-Markovnikov product is produced in the absence of a catalyst. [14]

  5. Metal-phosphine complex - Wikipedia

    en.wikipedia.org/wiki/Metal-phosphine_complex

    Tetrakis(triphenylphosphine)palladium(0) is widely used to catalyse C-C coupling reactions in organic synthesis, see Heck reaction. Wilkinson's catalyst, RhCl(PPh 3) 3 is a square planar Rh(I) complex of historical significance used to catalyze the hydrogenation of alkenes.

  6. Decarbonylation - Wikipedia

    en.wikipedia.org/wiki/Decarbonylation

    An example of this is the Tsuji–Wilkinson decarbonylation reaction using Wilkinson's catalyst. (Strictly speaking, the noncatalytic version of this reaction results in the formation of a rhodium carbonyl complex rather than free carbon monoxide.)

  7. Hydrogenation - Wikipedia

    en.wikipedia.org/wiki/Hydrogenation

    Mechanism for the hydrogenation of a terminal alkene using Wilkinson's catalyst. Homogeneous catalysts are also used in asymmetric synthesis by the hydrogenation of prochiral substrates. An early demonstration of this approach was the Rh-catalyzed hydrogenation of enamides as precursors to the drug L-DOPA. [10]

  8. Diboraanthracene - Wikipedia

    en.wikipedia.org/wiki/Diboraanthracene

    The most prominent example is the Wilkinson catalyst (RhCl(PPh₃)₃), which oxidatively adds dihydrogen for the hydrogenation of olefins. [15] It is well established that the cleavage of dihydrogen results from the synergistic donation of H₂ σ-MO electrons to the metal's vacant d orbitals, as well as the back-donation of electrons from the ...

  9. William Standish Knowles - Wikipedia

    en.wikipedia.org/wiki/William_Standish_Knowles

    Knowles developed one of the first asymmetric hydrogenation catalysts by replacing the achiral triphenylphosphine ligands in Wilkinson's catalyst with chiral phosphine ligands. This experimental catalyst was effective for enantioselective synthesis, achieving a modest 15% enantiomeric excess.