Synthesis of 2‐(Trifluoromethyl)benzo[b][1,8]naphthyridin‐4(1H)‐one Derivatives Using Trifluoroacetimidoyl Chlorides.

11 Title compounds are prepared from 2-chloro-3-acetyl-quinolines (I), which can easily prepared in two steps from readily available 2-chloro-3-formylquinolines.