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Synfacts 2008(9): 1000-1000  
DOI: 10.1055/s-2008-1078656
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Incorporation of CO2 into Oxazolidinones with PEG-Supported Catalyst

Contributor(s): Yasuhiro Uozumi, Yoshinori Hirai
Y. Du, Y. Wu, A.-H. Liu, L.-N. He*
Nankai University, Tianjin, P. R. of China
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Publication History

Publication Date:
22 August 2008 (online)

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Significance

Quaternary ammonium bromide anchored on polyethylene glycol [PEG6000(NBu3Br)2] catalyzed the addition of carbon dioxide to various aziridines to give the corresponding 5-aryl-2-oxazolidine compounds 2 in 45-95% yield with a trace amount of 3 (<8% yield). The catalytic activity of PEG6000(NBu3Br)2 was superior to that of unsupported quaternary ammonium bromides, such as Bu4NBr.