Storable, powdered chiral zirconium complex for asymmetric aldol and hetero Diels-Alder reactions |
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| Authors: | Seki Kazutaka Ueno Masaharu Kobayashi Shū |
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| Institution: | Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. |
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| Abstract: | A storable, powdered chiral zirconium catalyst for asymmetric aldol and hetero Diels-Alder reactions has been developed. The catalyst has the same activity as that prepared in situ even after being stored for 3 months. Moreover, this chiral Zr catalyst worked efficiently not only for asymmetric aldol reactions but also for asymmetric hetero Diels-Alder reactions affording the corresponding addition products with high enantioselectivities. |
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