beta-cyclodextrin-immobilized (4S)-phenoxy-(S)-proline as a catalyst for direct asymmetric aldol reactions |
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| Authors: | Shen Zongxuan Ma Jimei Liu Yanhua Jiao Chongjun Li Ming Zhang Yawen |
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| Institution: | Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Suzhou University, Suzhou, China. |
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| Abstract: | beta-Cyclodextrin-immobilized (4S)-phenoxy-(S)-proline was prepared conveniently by simply heating the amino acid and beta-cyclodextrin in ethanol-water (1/1, v/v) and removal of the solvent. This proved to be an efficient catalyst for direct asymmetric aldol reactions, and the catalyst could be recycled four times without loss of enantioselectivity. |
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| Keywords: | β‐cyclodextrin immobilized catalyst asymmetric aldol reaction |
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