Chiral binaphthylthiophosphoramide-cu(I)-catalyzed asymmetric addition of diethylzinc to N-sulfonylimines |
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| Authors: | Wang Chun-Jiang Shi Min |
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| Institution: | State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, 354 Fenglin Lu, Shanghai 200032, China. |
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| Abstract: | In the presence of a catalytic amount of chiral binaphthylthiophosphoramide L2 (6 mol %) and Cu(I) (3 mol %), the asymmetric addition of diethylzinc to N-sulfonylimines could be achieved in good yields with moderate to high ee (63-93% ee) at 0 degrees C in toluene. A novel chiral binaphthylthiophosphoramide ligand system for this asymmetric addition reaction has been explored. |
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