Abstract
AbstractMetal‐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 fused N‐heterocycles. The reaction proceeded with similar efficiency on gram scale.magnified image
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