Copper-Catalyzed Intermolecular Trifluoromethylazidation of Alkenes: Convenient Access to CF<sub>3</sub>-Containing Alkyl Azides
作者:Fei Wang、Xiaoxu Qi、Zhaoli Liang、Pinhong Chen、Guosheng Liu
DOI:10.1002/anie.201309991
日期:2014.2.10
A novel copper‐catalyzed intermoleculartrifluoromethylazidation of alkenes has been developed under mild reaction conditions. A variety of CF3‐containing organoazides were directly synthesized from a wide range of olefins, including activated and unactivated alkenes, and the resulting products can be easily transformed into the corresponding CF3‐containing amine derivatives.
Trifluoromethanesulfonyl azide as a bifunctional reagent for metal-free azidotrifluoromethylation of unactivated alkenes
作者:Hong-Gui Huang、Weishuang Li、Dayou Zhong、Hu-Chong Wang、Jing Zhao、Wen-Bo Liu
DOI:10.1039/d0sc06473d
日期:——
Vicinal trifluoromethyl azides have widespread applications in organic synthesis and drug development. However, their preparation is generally limited to transition-metal-catalyzed three-component reactions. We report here a simple and metal-free method that rapidly provides these buildingblocks from abundant alkenes and trifluoromethanesulfonyl azide (N3SO2CF3). This unprecedented two-component reaction
邻位三氟甲基叠氮化物在有机合成和药物开发中具有广泛的应用。然而,它们的制备通常限于过渡金属催化的三组分反应。我们在这里报告了一种简单且无金属的方法,该方法可快速从丰富的烯烃和三氟甲磺酰叠氮化物(N 3 SO 2 CF 3)提供这些结构单元。这种前所未有的两组分反应采用了容易获得的N 3 SO 2 CF 3作为双功能试剂,可同时引入CF 3和N 3族避免使用它们昂贵且低原子的经济前体。宽泛的官能团,包括与生物有关的杂环和氨基酸,都可以耐受。该方法的应用通过放大合成(5 mmol),产物衍生化为含CF 3的药用化学图案以及天然产物和药物衍生物的后期修饰而得到进一步证明。
Copper-Catalyzed Synthesis of β-Azido Sulfonates or Fluorinated Alkanes: Divergent Reactivity of Sodium Sulfinates
作者:Yang Xiong、Youwen Sun、Guozhu Zhang
DOI:10.1021/acs.orglett.8b02735
日期:2018.10.5
A new and general method for the synthesis of β-azidosulfonates has been achieved through Cu(I)-mediated radical oxidative sulfonylation–azidation of alkenes with sodium sulfinates. Under identical conditions, azido fluoroalkyated products could be readily obtained instead using CF3SO2Na or CHF2SO2Na as reagents. The starting materials of sulfinate compounds, alkenes, and azidotrimethylsilane are stable
通过Cu(I)介导的自由基与亚磺酸钠的烯烃氧化合磺化反应,已经获得了一种合成β-叠氮基磺酸盐的新的通用方法。在相同条件下,使用CF 3 SO 2 Na或CHF 2 SO 2 Na作为试剂,可以轻松获得叠氮基氟代烷基化产物。亚磺酸盐化合物,烯烃和叠氮基三甲基硅烷的起始原料是稳定且便宜的。该方法可以轻松地用于大规模制备。