| Significant Asymmetric Amplification in Enantioselective Cu/DiPPAM-catalyzed 1,6- and 1,4-Conjugate Additions of Diethylzinc to (Di)enones. | |
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MedLine Citation:
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PMID: 22743000 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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An unprecedented and strong positive nonlinear effect (NLE) was observed in Cu/DiPPAM-catalyzed asymmetric 1,6-conjugate addition of Et(2)Zn on (E)-3-(prop-1-en-1-yl)cyclohex-2-enone (71% ee reached with a 40% ee ligand). Moreover, similar behaviors were observed in Cu/DiPPAM-catalyzed 1,4-asymmetric conjugate additions of Et(2)Zn on both cyclohexenone and (E)-3-non-3-en-2-one (83% and 70% ee, respectively, reached with a 40% ee ligand). |
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Authors:
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Magaly Magrez; Joanna Wencel-Delord; Alexandre Alexakis; Christophe Crévisy; Marc Mauduit |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-6-28 |
Journal Detail:
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Title: Organic letters Volume: - ISSN: 1523-7052 ISO Abbreviation: - Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-6-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100890393 Medline TA: Org Lett Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Ecole Nationale Supérieure de Chimie de Rennes , CNRS, UMR 6226, Avenue du Général Leclerc, CS 50837, 35708 Rennes Cedex 7, France, Department of Organic Chemistry, University of Geneva , Quai Ernest Ansermet 30, 1211 Geneva, Switzerland, and Université Européenne de Bretagne , 5 Bd Laënnec, 35000 Rennes, France. |
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