Transition Metal-Free Selective Double sp3 C–H Oxidation of Cyclic Amines to 3‑Alkoxyamine Lactams
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The first chemical method for selective dual sp3 C–H functionalization at the alpha-and beta positions of cyclic amines to their corresponding 3-alkoxyamine lactams is reported. Unlike traditional Cα–H oxidation of amines to amides mediated by transition metals, the present protocol, which involves the use of NaClO2/TEMPO/NaClO in either aqueous or organic solvent, not only allows the Cα–H oxidation but also the subsequent functionalization of the unreactive β-methylene group in an unprecedented tandem fashion and using environmentally friendly reactants.
创建时间：
2016-09-12
