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 recyclable catalyst at ambient conditions

作者：Watile Rahul A; Bagal Dattatraya B; Patil Yogesh P; Bhanage Bhalchandra M^*

来源：Tetrahedron Letters, 2011, 52(48): 6383-6387.

DOI：10.1016/j.tetlet.2011.09.056

• Carbon dioxide
• Aziridines
• 5-Aryl-2-oxazolidinones
• Homogeneous
• Polyethylene glycol functionalized phosphonium salt

Polyethylene glycol functionalized phosphonium salt (Br(-)Ph(3)(+)PPEG(600)P(+)Ph(3)Br(-)) 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 its catalytic activity and selectivity.

• 出版日期2011-11-30