One‐Pot Conversion of Carbon Dioxide, Ethylene Oxide, and Amines to 3‐Aryl‐2‐oxazolidinones Catalyzed with Binary Ionic Liquids. Issue 1 (5th December 2013)

• Record Type: Journal Article
• Authors: Wang, Binshen; Elageed, Elnazeer H. M.; Zhang, Dawei; Yang, Sijuan; Wu, Shi; Zhang, Guirong; Gao, Guohua
• Is Part Of: ChemCatChem. Volume 6:Issue 1(2014:Jan.)
• Page Start: 278
• Page End: 283
• Publication Date: 2013-12-05
• Subjects: Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201300801
• Languages: English
• ISSNs: 1867-3880

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>An effective one‐pot method for the conversion of carbon dioxide, ethylene oxide, and amines to 3‐aryl‐2‐oxazolidinones has been developed. This one‐pot method consists of two parallel reactions and a subsequent cascade reaction between the two products of the corresponding parallel reactions. Notably, the binary ionic liquids of 1‐butyl‐3‐methyl‐imidazolium bromide and 1‐butyl‐3‐methyl‐imidazolium acetate demonstrate a synergistic catalytic effect on this new strategy. 1‐Butyl‐3‐methyl‐imidazolium bromide is essential in two parallel reactions owing to the good nucleophilicity and leaving ability of bromide, and 1‐butyl‐3‐methyl‐imidazolium acetate plays a dominant role in the subsequent cascade reaction owing to the strong basicity of acetate. In addition, the binary ionic liquids can be used thrice without significant loss of catalytic activity.</p> </abstract>