“…The reported methods for N,N'-biquinolines are limited to 3,3'-, 6,6'and 8,8'-biquinolines, with extended reaction time (24 h). [6,7] Although, CÀ H functionalization approach is also explored to afford biquinoline scaffold but its reactivity is limited till proximal position of quinoline N-oxide directing part. [8] So, efforts in order to broaden the scope for bi-N-heterocycles synthesis, which could offer a new generalized synthetic methodology for various bi-N-heterocycles were initiated.…”