Use of heterogenized dialdimine ligands in asymmetric transfer hydrogenation |
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| Affiliation: | 1. Key Laboratory of Medicinal Chemistry, and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, PR China;2. KNC-Daishin Laboratories, Co. Ltd., Taicang 215400, PR China;3. Institute of Molecular Science, Shanxi University, Taiyuan 030006, PR China;1. Department of Technology and Society, The State University of New York, Korea, Incheon, Republic of Korea;2. Department of Engineering and Technology Management, Maseeh College of Engineering and Computer Science, Portland State University, Portland, OR, USA;1. Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China;2. Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China |
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| Abstract: | Heterogenized dialdimine ligands complexed to iridium were tested in the asymmetric transfer hydrogenation of acetophenone. E.e.s of up to 70% were achieved but the recycling was unsatisfactory. When such ligands were used in asymmetric epoxidation of styrene, a modest e.e. of 15% was achieved. |
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