Ruthenium-Na2CO3-catalyzed one-pot synthesis of ring-hydrogenated carbamates from aromatic amines and organic carbonates under H-2
- Title
- Ruthenium-Na2CO3-catalyzed one-pot synthesis of ring-hydrogenated carbamates from aromatic amines and organic carbonates under H-2
- Author
- 서영웅
- Keywords
- Aromatic amine; Alkylene carbonate; Carbamate; Ring hydrogenation; Ruthenium catalyst; Sodium carbonate
- Issue Date
- 2014-10
- Publisher
- ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
- Citation
- Applied Catalysis A, Vol.487 No.- [2014], 82-90
- Abstract
- A facile and efficient one-pot procedure for the synthesis of ring hydrogenated carbamates from aromatic amine and alkylene carbonate under H-2 gas pressure has been developed using a heterogeneous catalyst system comprising ruthenium and alkali metal carbonates. The effects of temperature, H-2 pressure, catalyst (types of loaded metal and their supports), molar ratio of substrate/catalyst, and solvent were also investigated. Among the alkali metal carbonates, the sodium carbonate was found as best promoter for nucleophilic attack and ring-opening (NARO) reaction and thus increased the yield of ring hydrogenated carbamate up to 88% when using Ru/C as ring hydrogenation (RH) catalyst. This catalyst system could be reused at least five times without significant loss of activity, which makes this process cost-effective and eco-friendly. (c) 2014 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S0926860X14005638?via%3Dihubhttp://hdl.handle.net/20.500.11754/58237
- ISSN
- 0926-860X; 0926-860X
- DOI
- 10.1016/j.apcata.2014.09.013
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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