Asymmetric Induction in the Synthesis of 3,4,5-Trisubstituted Ferrocenyl-4,5-dihydropyrazoles |
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| Authors: | Klimova-Berestneva T Martinez Garcia M Meleshonkova N N Klimova E I |
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| Institution: | (1) National Automous University of Mexico, Mexico Institute of Chemisty, National Automous University of Mexico, Mexico. Lomonosov Moscow State University, Moscow, Russia |
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| Abstract: | The asymmetric induction in the synthesis of 3,4,5-trisubstituted 4,5-dihydropyrazoles with ferrocenyl substituents, starting from the E and Z isomers of  , -unsaturated ketones was studied. A high diastereoselectivity was revealed at the 1,2 chiral center  chiral center induction, which is independent of the configuration of the starting chalcones. |
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