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N‐Heterocyclic Carbene–Palladium Complexes as Efficient Catalysts for the Oxidative Carbonylation of Amines to Ureas |
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| Authors: | Shuzhan Zheng Xingao Peng Jianming Liu Wei Sun Chungu Xia |
| Affiliation: | 1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P.?R. China, (fax: +86?9318277088);2. Graduate School of the Chinese Academy of Sciences, Beijing, 100039, P.?R. China |
| Abstract: | A highly efficient oxidative carbonylation reaction of amines to ureas was developed making use of carbene–palladium complexes in the absence of any promoter. Both aliphatic amines and aromatic amines were transformed in good to excellent yields to the expected ureas. |
| Keywords: | Palladium complexes Amines Ureas Carbenes Catalysis Carbonylation |