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Zinc‐Catalyzed Selective Reduction of Cyclic Imides with Hydrosilanes: Synthesis of ω‐Hydroxylactams
Authors:Guangni Ding  Bin Lu  Yuyuan Li  Jun Wan  Zhaoguo Zhang  Xiaomin Xie
Abstract:Cyclic imides were selectively reduced to the corresponding ω‐hydroxylactams in high yields with (EtO)3SiH (triethoxysilane) or PMHS (polymethylhydrosiloxane) under catalysis of zinc diacetate dehydrate [Zn(OAc)2⋅2 H2O] (10%) and tetramethylethylenediamine (TMEDA) (10%). This catalytic protocol showed good functional group tolerance as well as excellent regioselectivity for unsymmetrical imides bearing coordinating groups adjacent to the carbonyl.
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Keywords:cyclic imides  diamine ligands  hydrosilylation  ω  ‐hydroxylactams  zinc catalysis
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