Reactions with hydrazonoyl halides 66: Synthesis of some new 1,3,4-thiadiazoles, triazolino[4,3-a]pyrimidines and isoxazolo[3,4-d]pyridazines containing coumarin moiety

2,3-Dihydro-1,3,4-thiadiazoles, triazolino[4,3- a ]pyrimidines, isoxazoles and isoxazolo[3,4- d ]pyridazines containing coumarin moities were synthesized from the reactions of methyl (or benzyl) carbodithioate, pyrimidine-2-thione and 3-(3-(dimethylamino)acryloyl)-2 H -chromen-2-one derivatives with C -coumarinoyl- N -phenylhydrazonoyl bromide. The structures of all the newly synthesized compounds were confirmed by elemental analyses and spectral data.

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