One‐Pot Synthesis of Disubstituted Urea from Carbon Dioxide, Propylene Oxide, and Amines Catalyzed by Imidazolium‐Tetraiodoindate
-
- Guang Meang Son
- Department of Chemistry Yonsei University Seoul 120‐749 Korea
-
- Cong Chien Truong
- Department of Green Process and System Engineering Korea University of Science and Technology (UST) Cheonan 31056 Korea
-
- Dinesh Kumar Mishra
- Department of Green Process and System Engineering Korea University of Science and Technology (UST) Cheonan 31056 Korea
-
- Vivek Mishra
- Green Material and Process R&D Group Korea Institute of Industrial Technology (KITECH) Cheonan 31056 Korea
-
- Yong Jin Kim
- Department of Green Process and System Engineering Korea University of Science and Technology (UST) Cheonan 31056 Korea
書誌事項
- 公開日
- 2018-01-17
- 権利情報
-
- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
-
- 10.1002/bkcs.11363
- 公開者
- Wiley
この論文をさがす
説明
<jats:p>In this article, synthesis of 1,3‐disubstituted urea (DSU) from three component reagent systems comprising amine, carbon dioxide, and propylene oxide is described. DSU is synthesized in the presence of a variety of ionic liquids (ILs) with/without promoters. Among used ILs, 1‐butyl‐3‐methylimidazolium tetraiodoindate<jats:sup>III</jats:sup> (represented as [Bmim][InI<jats:sub>4</jats:sub>]) is found to give the highest DSU product. A serious experiment clearly indicates that the tetraiodoindate anion plays an important role for the selective production of the DSU. Based on the <jats:italic>in situ</jats:italic> infrared spectroscopic studies, a plausible reaction mechanism for producing dicyclohexylurea from cyclohexylamine is proposed. The synthesis and characterization of [Bmim][InI<jats:sub>4</jats:sub>] are given in details. Moreover, the effect of reaction variables such as time, temperature, pressure, and the molar ratio of substrate to catalyst is also studied.</jats:p>
収録刊行物
-
- Bulletin of the Korean Chemical Society
-
Bulletin of the Korean Chemical Society 39 (2), 174-183, 2018-01-17
Wiley