Journal
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
Volume 11, Issue -, Pages 622-627Publisher
BEILSTEIN-INSTITUT
DOI: 10.3762/bjoc.11.70
Keywords
alkenes; homogeneous catalysis; hydrogenation; renewable solvents; tertiary amines
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Funding
- University of St Andrews
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In the hydrogenation of sluggish unactivated enamine substrates, Rh complexes of electron-deficient phosphines are demonstrated to be far more reactive catalysts than those derived from triphenylphosphine. These operate at low catalyst loadings (down to 0.01 mol %) and are able to reduce tetrasubstituted enamines. The use of the sustainable and environmentally benign solvent (R)-limonene for the reaction is also reported with the amine isolated by acid extraction.
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