Metal‐Free TFA‐Promoted Regioselective (Hetero)Arylation: Synthesis of (Hetero)Aryl Substituted and Carbazole/Oxepine Fused
<i>N</i>
‐Heterocycles
作者:Ramanna Jatoth、Praveen Kumar Naikawadi、Boyapally Bhaskar、Kishan Gugulothu、Peramalla Edukondalu、K. Shiva Kumar
DOI:10.1002/adsc.202101459
日期:2022.3.30
Metal-free TFA promoted arylation/heteroarylation was achieved under mild conditions via the reaction of chloro-derivatives of nitrogen heterocycles [e. g., =C−C(Cl)=N−] with electron rich arenes/heteroarenes. It was also observed that apart from participating in the heteroarylation step, TFA was able to facilitate the hydroarylation/o-arylation process in the same pot affording the carbazole/oxepine
通过氮杂环的氯衍生物的反应在温和条件下实现无金属 TFA 促进的芳基化/杂芳基化[e. g.,=C-C(Cl)=N-] 与富电子芳烃/杂芳烃。还观察到,除了参与杂芳基化步骤外,TFA 还能够在同一锅中促进氢化芳基化/邻芳基化过程,从而提供咔唑/氧杂环庚烯稠合的N-杂环。该反应以克级的相似效率进行。