ChemInform Abstract: Chemistry of Pyridazines. Part 36. Novel Diaza‐Analogues of 10,11‐Dihydro‐5H‐dibenzo(a,d)cyclohepten‐5‐one.

Abstract The title compounds (IV), (VIII), (XIII) are prepared by cyclization of appropriate precursors (III), (VII), or (XI)/(XII), respectively.