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| Synthesis of Photo-sensitive Supported-Proline and Their Application in Asymmetric Aldol Reaction in Water |
| LI Guang-feng， HUANG Yan-gen |
| National Engineering Research Center for Dyeing and Finishing of Textiles, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China |
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Abstract RAFT polymerization was successfully applied to the synthesis of the photo-sensitive supported catalysts(P) containing L-proline, coumarin and polyethylene glycol. The structures were characterized by 1H NMR and elemental analysis. UV spectra showed that the structures of P changed before and after UV irradiation. The catalytic performance indicated that Aldol reaction between cyclohexanone and 4-nitrobenzaldehyde in water can be achieved under the catalysis of P both before and after UV irradiation. The yields were 65%~76%, dr>93/7, and ee>95%.
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Received: 30 January 2015
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2016, Vol. 24 
