Tetrahedron Letters

Regioselective synthesis of 5-aryl-2-oxazolidinones from carbon dioxide and aziridines using Br− Ph 3+ PPEG 600 P+ Ph 3 Br− as an efficient, homogenous …

RA Watile, DB Bagal, YP Patil, BM Bhanage

文献索引：Watile, Rahul A.; Bagal, Dattatraya B.; Patil, Yogesh P.; Bhanage, Bhalchandra M. Tetrahedron Letters, 2011 , vol. 52, # 48 p. 6383 - 6387

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被引用次数: 24

摘要

Polyethylene glycol functionalized phosphonium salt (Br− Ph3+ PPEG600P+ Ph3Br−) was found to be an efficient, homogenous, recyclable catalyst for coupling of CO2 with a variety of aziridines producing corresponding 5-aryl-2-oxazolidinones with good yields and excellent regioselectivity under relatively mild and solvent free conditions. Furthermore, the catalyst was effectively recycled for four consecutive cycles without any significant loss in ...