Synthesis of N-aryl-2-oxazolidinones from cyclic carbonates and aromatic amines catalyzed by bio-catalyst
作者:Congmin Mei、Yibo Zhao、Ke Zou、Changsheng Cao、Guangsheng Pang、Yanhui Shi
DOI:10.1007/s11164-017-3222-y
日期:2018.3
A convenient and effective method of synthesizing 3-aryl-2-oxazolidinones from cyclic carbonates and aryl amines catalyzed by bio-catalyst adenine in the presence of Et3N under solvent-free conditions is described. The protocol is suitable for the wide scope of substrates, e.g. cyclic carbonates with or without substitutes, and aryl amines with either electron-withdrawing or electron-donating group
描述了在无溶剂条件下在Et 3 N存在下由生物催化剂腺嘌呤催化的环状碳酸酯和芳基胺合成3-芳基-2-恶唑烷酮的便捷有效方法。该方案适用于多种底物,例如带或不带取代基的环状碳酸酯,以及具有吸电子或供电子基团的芳基胺。即使在位阻情况下,在最佳条件下也能以良好或优异的收率获得产品。研究了反应时间,温度,催化剂用量和原料用量对反应的影响,并探讨了反应机理。