Journal
TETRAHEDRON LETTERS
Volume 51, Issue 3, Pages 525-528Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.11.075
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Funding
- National Science Foundation of China [20621063, 20872140]
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Introducing bulky groups on the coordination phosphorus atoms can effectively block the formation of inactive dimer species and improve the activity of the iridium catalysts. Results of ESI-MS analysis gave strong evidence. This strategy was successfully applied to the asymmetric hydrogenation of quinolines with up to 93% ee on S/C ratio of 25,000. Crown Copyright (C) 2009 published by Elsevier Ltd. All rights reserved.
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