Biomimetic alloxan-catalyzed intramolecular redox reaction with O2: One-pot atom-economic synthesis of sulfinyl-functionalized benzimidazoles
作者:Shiqi Zhang、Dong Yi、Guangxun Li、Ling Li、Gang Zhao、Zhuo Tang
DOI:10.1016/j.tetlet.2020.152688
日期:2021.1
Given the necessity of sacrificial reductants in various biomimetic aerobic oxygenations, alloxan-catalyzed aerobic redox system for one-pot atom-economic synthesis of sulfinyl-functionalized benzimidazoles was developed by ingeniously binding both the substrate sulfide and sacrificial reductant. This mild and transition-metal-free protocol undergoes two oxidations without additional sacrificial reagents
鉴于在各种仿生需氧氧化中必须使用牺牲性还原剂,通过巧妙地结合底物硫化物和牺牲性还原剂,开发了用于一锅原子经济合成亚磺酰基官能化苯并咪唑的四氧嘧啶催化的有氧氧化还原系统。除了对环境无害的分子氧以外,这种温和且无过渡金属的方案无需额外的牺牲试剂即可进行两次氧化。