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New model 1,2,4-triazino[6,5-h]quinolines 8a - c are prepared by oxidative cyclization of the respective N-(quinolin-8-yl)amidrazone precursors 7a - c using copper(II) chloride. Interestingly, the cyclized products 8a - c were found to be arylated at N1 position. Analytical and spectral (MS, NMR) data of the title products are in compliance with the allocated structures.

Metal-assisted Oxidative Cyclization of Arylamidrazones II [1]. Novel Synthesis of 1,4-Diaryl[1,2,4]triazino[6,5-h]quinolines