255375-30-5

Upstream product

• 2028-84-4 p-methylbenzenediazonium chloride 
• 64882-50-4 1-(benzotriazol-1-yl)propan-2-one 
• 622-74-2 N-phenyl-N'-p-tolyl-triazene 
• 255375-28-1 6-(1H-1,2,3-benzotriazol-1-yl)-5-methyl-2-(4-methylphenyl)-3-oxo-2,3-dihydropyridazine-4-carbonitrile 

Relevant academic research and scientific papers

A microwave assisted diazo coupling reaction: The synthesis of alkylazines and thienopyridazines

Heating diazoaminobenzene with active methylene compounds 1-3 in microwave oven in acetic acid, in the presence of hydrochloric acid, afforded the corresponding arylhydrazones 5-7. These reaction products were condensed with ethyl cyanoacetate in a domestic microwave oven after 1-2 minutes heating to yield the pyridazinones 8-12. Compounds 8c and 12 reacted with sulfur in basic DMF solution, in microwave oven using MORE technology to yield the thienopyridazinone 14 and 16 respectively. While 17 was produced when 8b was treated like wise with sulfur and DMF in the presence of piperidine. Compounds 16 coupled with aromatic diazonium salts to yield arylazo derivatives 21a-c. Copyright Taylor & Francis Group, LLC.

Benzotriazol-1-yl-acetone as Building Block in Heterocyclic Chemistry: A Route to Benzotriazolyl-Pyridazines, Benzotriazolylphthalazines and Benzotriazolylpyrazolo[5,1-c]-1,2,4-triazines

Benzotriazolylacetone 1 coupled with aromatic diazonium salts to yield the arylhydrazones 2a-b and with 5-methyl-1H-pyrazol-3-diazonium chloride 3 to yield the pyrazole[5,1-c]-1,2,4-triazine. Compounds 2a-b condensed with ethyl cyanoacetate to yield the pyridazinones 6a,b that were converted into a variety of other condensed pyridazinones.