Heterogeneous base catalyzed synthesis of 2-oxazolidinones/2-imidiazolidinones via transesterification of ethylene carbonate with β-aminoalcohols/1,2-diamines
- 作者：Sachin R. Jagtap ; Yogesh P. Patil ; Shin-Ichiro Fujita ; Masahiko Arai ; Bhalch ; ra M. Bhanage
- 关键词：Oxazolidinones ; Imidiazolidinones ; Ethylene carbonate ; Heterogeneous catalysis ; Basic metal oxide
- 刊名：Applied Catalysis A ; General
- 出版年：2008
- 期刊代码：4_0926860x
- 类别：ch
- 出版时间：15 June 2008
- 卷：341
- 期：1-2
- 页码：133-138
- 文件大小：347 K
摘要
Several heterogeneous basic metal oxide catalysts were screened for the synthesis of 2-oxazolidinones and 2-imidiazolidinones via transesterification of ethylene carbonate with different β-aminoalcohols or 1,2-diamines. Among the several catalysts screened, MgO was found to be the best catalyst, as it has excellent recyclability. Various reaction parameters were studied in detail. Excellent yields of the products were obtained using MgO as catalysts at 80 °C within 6 h in ethanol. Basic properties of the metal oxide catalysts were compared using temperature programmed desorption (TPD) studies with CO2. The relationship between the catalyst performance and the basic property of each catalyst has been discussed.