136819-79-9

Upstream product

• 151-50-8 potassium cyanide 
• 136819-78-8 7-(Methylsulfonyl)-1-phenyl-1H-pyrazolo<3,4-d>pyridazine 
• 136819-77-7 7-Methylthio-1-phenyl-1H-pyrazolo<3,4-d>pyridazine 
• 98626-23-4 7-chloro-1-phenyl-1H-pyrazolo<3,4-d>pyridazine 
• 136819-76-6 7-Mercapto-1-phenyl-1H-pyrazolo<3,4-d>pyridazine 

Downstream Products

• 136819-82-4 1,6-diphenyl-1H-indazole-7-carbonitrile 
• 136819-85-7 6-(N,N-diethylamino)-5-methyl-1-phenyl-1H-indazole-7-carbonitrile 
• 136819-86-8 6-(N,N-diethylamino)-5-methyl-1-phenyl-1H-pyrazolo<3,4-d><1,2>diazocine-9-carbonitrile 
• 136819-83-5 5,6,7,8-tetrahydro-1-phenyl-1H-benzindazole-9-carbonitrile 
• 136819-81-3 1,5,6,7-tetrahydro-1-phenylcyclopentaindazole-8-carbonitrile 

Relevant academic research and scientific papers

Condensed pyridazines. VIII. Reaction of diazolopyridazines with ynamine. Formation of benzodiazoles and diazolodiazocines

Reaction of the 7-(methylsulfonyl)-1H-imidazo[4,5-d]pyridazine with 1-(N,N-diethylamino)-1-propyne (2) resulted in the formation of the benzimidazole and the 3H-imidazo[4,5-d][1,2]diazocine through the [4+2]- and [2+2]-cycloadducts. Similarly, reaction of the 7-(methylsulfonyl)- and the 7-cyano-1H-pyrazolo[3,4-d]pyridazines with 2 gave the corresponding indazoles and the 1H-pyrazolo[3,4-d][1,2]diazocines. A similar reaction was also found to proceed between 7-(methylsulfonyl)-1H-1,2,3-triazolo[4,5-d]pyridazine and 2, affording the corresponding benzotriazole and the 3H-1,2,3-triazolo[4,5-d][1,2]diazocine.