PyBidine–NiCl2‑Catalyzed Asymmetric Addition of Alcohols and Peroxides to Isatin-Derived Ketimines
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An (S,S)-diphenyldiamine-derived bis(imidazolidine)pyridine (PyBidine)–NiCl2 complex catalyzed the asymmetric addition of methanol and peroxides to isatin-derived N-Boc-imines to form chiral quaternary N,O-acetals at the C3 position of the resulting oxiindoles in up to 99% yield with 94% ee.
创建时间：
2016-02-15
