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Showing 1–4 of 4 results
Advanced filters: Author: Rongkai Wu Clear advanced filters

  • Thermal [2+2] cycloaddition reactions are symmetry-forbidden due to ground-state orbital symmetry constraints, making them challenging to achieve under non-photochemical conditions. Now a stepwise radical intramolecular thermal crossed [2+2] cycloaddition of N-(homo)allyl gem-difluoroenamines and homoallyl gem-difluorovinyl ethers has been accomplished, through tandem gem-difluoroalkenylation of N-(homo)allylamines and homoallyl alcohols with trifluoromethyl triftosylhydrazones.

    • Yongquan Ning
    • Rongkai Wu
    • Xihe Bi
    Research
    Nature Chemistry
    P: 1-11

  • The Mannich reaction is a three-component reaction for preparing alkylamines, but the nucleophilic components rely on C(sp2)−H and activated C(sp3)−H bonds. Here, the authors report an unprecedented multicomponent double Mannich alkylamination for both C(sp2)−H and unactivated benzylic C(sp3)−H bonds.

    • Zhencheng Lai
    • Rongkai Wu
    • Sunliang Cui
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • trans-Bis-silylation of alkynes is underdeveloped compared with cis-bis-silylation. Now, a Pd-catalysed method for the trans-bis-silylation of terminal alkynes is reported using disilane reagent 8-(2-substituted 1,1,2,2-tetramethyldisilanyl)quinoline to selectively form trans-bis-silylated alkenes. Mechanistic studies reveal that the reaction probably proceeds through a combined cis-bis-silylation and Z/E isomerization process.

    • Shuang Zhao
    • Yun Zhang
    • Dongbing Zhao
    Research
    Nature Synthesis
    Volume: 2, P: 937-948