Sequential One-Pot Ruthenium-Catalyzed Azide−Alkyne Cycloaddition from Primary Alkyl Halides and Sodium Azide
作者:Johan R. Johansson、Per Lincoln、Bengt Nordén、Nina Kann
DOI:10.1021/jo200134a
日期:2011.4.1
simple sequential one-pot RuAAC reaction, affording 1,5-disubstituted 1H-1,2,3-triazoles in good to excellent yields starting from an alkyl halide, sodium azide, and an alkyne, is reported. The organic azide is formed in situ by treating the primary alkyl halide with sodium azide in DMA under microwave heating. Subsequent addition of [RuClCp*(PPh3)2] and the alkyne yielded the desired cycloaddition product
据报道,从烷基卤化物,叠氮化钠和炔烃开始,实验上简单的连续一锅RuAAC反应以良好或优异的产率提供了1,5-二取代的1 H -1,2,3-三唑。通过在微波加热下在DMA中用叠氮化钠处理伯烷基卤化物来原位形成有机叠氮化物。在进一步的微波辐射之后,随后加入[RuClCp *(PPh 3)2 ]和炔烃,得到所需的环加成产物。