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number: 20154201390374 Title: Synthesis of enantiopure C3-symmetric ligand derived from BINOL and its application in enantioselective addition of diethylzinc to aromatic aldehydes Authors: Zhu, Wei-Jun1 ; Liu, Da-Cai1; Yang, Nian-Fa1 ; Yang, Li-Wen1 Author affiliation: 1Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, China Corresponding author: Yang, Nian-Fa Source title: Journal of Molecular Catalysis Abbreviated source title: J. Mol. Catal. Volume: 29 Issue: 4 Issue date: August 1, 2015 Publication year: 2015 Pages: 299-306 Language: Chinese ISSN: 10013555 Document type: Journal article (JA) Publisher: Science Press Abstract: A novel, recoverable C3-symmetric dendritic small molecular ligand (L1) containing BINOL has been synthesized to conduct the enantioselective addition of diethylzinc to aromatic aldehydes. The optically active secondary alcohols were obtained with up to 91% ee and up to 99% yield. After the reaction was finished, the dendritic ligand L1was recovered with a high yield by simple extraction and washing process. The recycled dendritic ligand was reused for five times without loss of catalytic activity as well as enantioselectivity. ©, 2015, Science Press. All right reserved. Number of references: 19 Main heading: Ligands Controlled terms: Aldehydes - Aromatic compounds - Aromatization - Bins - Catalyst activity - Enantioselectivity Uncontrolled terms: Aromatic aldehyde - Dendritic ligands - Diethylzinc - Enantioselective addition - ITS applications - Molecular ligands - Optically Active - Secondary alcohols Classification code: 694.4 Storage - 801.4 Physical Chemistry - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.1 Organic Compounds Database: Compendex Compilation and indexing terms, © 2016 Elsevier Inc. Full-text and Local Holdings Links |
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