Synthesis of 4<i>H</i>-1,3-Benzoxazines via Metal- and Oxidizing Reagent-Free Aromatic C–H Oxygenation
作者:Fan Xu、Xiang-Yang Qian、Yan-Jie Li、Hai-Chao Xu
DOI:10.1021/acs.orglett.7b03152
日期:2017.12.1
An unprecedented electrochemical aromatic C–H oxygenation reaction for the synthesis of 4H-1,3-benzoxazines from easily available N-benzylamides is reported. These oxidative cyclization reactions proceed in a transition metal- and oxidizing reagent-free fashion and produce H2 as only theoretical byproduct. Adapting the C–H oxygenation reaction in an electrochemical microreactor has been demonstrated
据报道,从容易获得的N-苄基酰胺类化合物合成4 H -1,3-苯并恶嗪史无前例的电化学芳族CH氧化反应。这些氧化环化反应以无过渡金属和无氧化剂的方式进行,并仅作为理论副产物产生H 2。已经证明了在电化学微反应器中适应CH氧化反应。