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Chiral Amine−Polyoxometalate Hybrids as Highly Efficient and Recoverable Asymmetric Enamine Catalysts
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Abstract
Chiral amine and polyoxometalate (POM) acids were combined to give highly efficient, stereoselective, and recoverable enamine-based catalysts. Less than 1 mol % of chiral amine loading was sufficient for good catalytic activity, and the catalyst could be recovered and reused 6 times with unchanged enantioselectivity and slightly decreased activity.
Citing Articles
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This article has been cited by 3 ACS Journal articles (3 most recent appear below).
Photoreduction of Carbon Dioxide to Carbon Monoxide with Hydrogen Catalyzed by a Rhenium(I) Phenanthroline−Polyoxometalate Hybrid Complex
Jessica Ettedgui, Yael Diskin-Posner, Lev Weiner, and Ronny NeumannJournal of the American Chemical Society2011 133 (2), 188-190Photoreduction of Carbon Dioxide to Carbon Monoxide with Hydrogen Catalyzed by a Rhenium(I) Phenanthroline−Polyoxometalate Hybrid Complex
Jessica Ettedgui, Yael Diskin-Posner, Lev Weiner, and Ronny NeumannJournal of the American Chemical Society2011 133 (2), 188-190A phenanthroline ligand decorated at the 5,6-position with a 15-crown-5 ether was used to prepare a metalorganic−polyoxometalate hybrid complex ReI(L)(CO)3CH3CN−MHPW12O40 (L = 15-crown-5-phenanthroline, M = Na+, H3O+). X-ray diffraction, 1H and 13C NMR, ...
Chiral Primary−Tertiary Diamine Catalysts Derived From Natural Amino Acids for syn-Aldol Reactions of Hydroxy Ketones
Jiuyuan Li, Sanzhong Luo and Jin-Pei ChengThe Journal of Organic Chemistry2009 74 (4), 1747-1750Chiral Primary−Tertiary Diamine Catalysts Derived From Natural Amino Acids for syn-Aldol Reactions of Hydroxy Ketones
Jiuyuan Li, Sanzhong Luo and Jin-Pei ChengThe Journal of Organic Chemistry2009 74 (4), 1747-1750A series of primary-tertiary diamine catalysts were designed and synthesized from primary natural amino acids. Application of these new chiral catalysts in direct aldol reactions of α-hydroxyketones showed very good catalytic activity (up to 97% yield) ...
Phenanthroline Decorated by a Crown Ether as a Module for Metallorganic−Polyoxometalate Hybrid Catalysts: The Wacker Type Oxidation of Alkenes with Nitrous Oxide as Terminal Oxidant
Jessica Ettedgui and Ronny NeumannJournal of the American Chemical Society2009 131 (1), 4-5Phenanthroline Decorated by a Crown Ether as a Module for Metallorganic−Polyoxometalate Hybrid Catalysts: The Wacker Type Oxidation of Alkenes with Nitrous Oxide as Terminal Oxidant
Jessica Ettedgui and Ronny NeumannJournal of the American Chemical Society2009 131 (1), 4-5A 1,10-phenanthroline ligand decorated at the 5,6-position by a 15-crown-5 ether moiety was prepared. Ligation of PdII at the nitrogen atom positions followed by complexation at the crown ether group of a redox active H5PV2Mo10O40 polyoxometalate yielded ...
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History
- Published In Issue August 30, 2007
- Received July 17, 2007
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