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Showing 1–4 of 4 results
Advanced filters: Author: Qiu-Di Dang Clear advanced filters

  • The construction of vicinal, congested stereocenters with high selectivities is of general utility in chemistry. Here the authors report a doubly-stereoconvergent, Cu/Mg-catalyzed asymmetric propargylic substitution reaction to convert simple starting materials to products with vicinal tertiary and all-carbon quaternary stereocenters in high yields and excellent diastereo- and enantioselectivities

    • Xiang Pu
    • Qiu-Di Dang
    • Dawen Niu
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • A glycosylation platform is demonstrated that enables selective coupling between a wide range of unprotected or minimally protected donor and acceptor sugars, producing 1,2-cis-O-glycosides in a catalyst-controlled, site-selective manner.

    • Qiu-Di Dang
    • Yi-Hui Deng
    • Dawen Niu
    Research
    Nature
    Volume: 632, P: 313-319

  • The synthesis of aryl C-glycosides often requires manipulation of protecting groups. Here a general method to prepare aryl C-glycosides from unprotected and stable starting materials has been achieved by photoredox, Ni-catalysed cross-coupling. The protocol was also applied in the synthesis of several sugar–drug conjugates and gliflozin drug molecules.

    • Chen Zhang
    • Shi-Yang Xu
    • Dawen Niu
    Research
    Nature Synthesis
    Volume: 2, P: 251-260

  • Most chemical glycosylation methods operate by acid-promoted, ionic activation of donors. Now, by exploiting the formation of a halogen-bond complex, the activation of glycosyl donors was achieved via a visible light-promoted radical cascade process, resulting in a general, simple and mild way to build challenging 1,2-cis-glycosidic bonds.

    • Chen Zhang
    • Hao Zuo
    • Dawen Niu
    Research
    Nature Chemistry
    Volume: 14, P: 686-694