Copper‐Catalyzed Site‐Selective Oxidative C−C Bond Cleavage of Simple Ketones for the Synthesis of Anilides and Paracetamol
作者:Nagaraju Vodnala、Raghuram Gujjarappa、Chinmoy K. Hazra、Dhananjaya Kaldhi、Arup. K. Kabi、Uwe Beifuss、Chandi C. Malakar
DOI:10.1002/adsc.201801096
日期:2019.1.11
functional‐group compatibility and wide substrate scope. The developed method avoids the use of sensitive and narcotic agents. The method also represents an excellent complement to the previous protocols with lower E‐factor (13.91 mg/1 mg) than current industrially used method (E‐factor 17.54 mg/1 mg). The developed approach has also been extended for the effective preparation of pyridine derivatives and
描述了一种铜催化的通过CC键裂解使苯胺与丙酮和苯乙酮进行N-酰化的方法。在开发条件下,CHCl 3和CH 2 Cl 2都被确定为潜在的C1来源,可以促进这一转变。该反应具有位点选择性CC键断裂的特点,可安装具有高官能团相容性和广泛底物范围的酰胺部分。所开发的方法避免了使用敏感和麻醉剂。该方法还可以很好地补充以前的方案,其E因子(13.91 mg / 1 mg)比目前的工业使用方法(E-factor 17.54 mg / 1 mg)低。所开发的方法也已扩展为有效制备以克为单位的吡啶衍生物和扑热息痛。反应过程通过1 H NMR监测,作为对反应机理的初步研究。