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- W2123722951 abstract "As in transition metal complexes, CN–R ligands adsorbed on powdered gold undergo attack by amines to give putative diaminocarbene groups on the gold surface. This reaction forms the basis for the discovery of a gold metal-catalyzed reaction of CN–R, primary amines (R′NH2) and O2 to give carbodiimides (R′–NCN–R). An analogous reaction of CO, RNH2, and O2 gives isocyanates (R–NCO), which react with additional amine to give urea (RNH)2CO products. The gold-catalyzed reaction of CN–R with secondary amines (HNR′2) and O2 gives mixed ureas RNH(CO)NR′2. In another type of gold-catalyzed reaction, secondary amines HN(CH2R)2 react with O2 to undergo dehydrogenation to the imine product, RCHN(CH2R). Of special interest is the high catalytic activity of gold powder, which is otherwise well-known for its poor catalytic properties." @default.
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- W2123722951 creator A5067180086 @default.
- W2123722951 date "2008-03-01" @default.
- W2123722951 modified "2023-09-23" @default.
- W2123722951 title "Organometallic chemistry and catalysis on gold metal surfaces" @default.
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- W2123722951 doi "https://doi.org/10.1016/j.jorganchem.2007.11.023" @default.
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