title: Chiral binaphthylthiophosphoramide-cu(I)-catalyzed asymmetric addition of diethylzinc to N-sulfonylimines.
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.
authors.affiliation: State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, 354 Fenglin Lu, Shanghai 200032, China.
authors.forename: Chun-Jiang
authors.initials: CJ
authors.lastname: Wang
authors.forename: Min
authors.initials: M
authors.lastname: Shi