145490-41-1

Upstream product

• 827-41-8 3-phenylpyrazol-5-amine 
• 145490-37-5 3-phenylpyrazol-5-yl diazonium chloride 
• 60269-82-1 4-phenyl-6-methylpyrazolo<5,1-c>-1,2,4-triazine-7-carbonitrile 

Downstream Products

• 145490-42-2 4-phenylpyrazolo<5,1-c>benzfuro-1,2,4-triazine-7,9-dione 
• 145490-45-5 8-amino-3,6-dibromo-4-phenylthieno<4,3-e>pyrazolo<5',1'-c'>-1,2,4-triazine 
• 145490-47-7 8-amino-4-phenylpyrazolo<5,1-c>benztriazine-7-carbonitrile 
• 145490-44-4 8-N-acetylamino-4-phenylthieno<4,3-e>pyrazolo<5',1'-c'>-1,2,4-triazine 
• 145490-43-3 10-amino-4,8-diphenyl<5,1-c>benzpyrrolo-1,2,4-triazine-7,9-dione 

Relevant academic research and scientific papers

STUDIES WITH ALKYLHETEROCYCLIC CARBONITRILES: A NOVEL SYNTHETIC ROUTE TO SEVERAL NEW ANNELATED PYRAZOLO-1,2,4,-TRIAZINE DERIVATIVES

3-Phenylpyrazol-5-yl diazonium chloride (1a) was coupled with 2-aminocrotonitrile (4) to afford 4-phenyl-6-methylpyrazolo-1,2,4-triazine-7-carbonitrile (5).Upon reaction with sulfur, compound 5 was transformed into 8-amino-4-phenylthienopyra

Studies with Alkylheteroaromatic Carbonitriles: A Novel Sythesis of Pyrazolobenzo-1,2,4-triazine

A novel synthesis of derivatives of the title ring system by reacting methylpyrazolo-1,2,4-triazin-6-carbonitriles (9) with sulphur and subsequent treatment of the resulting thienopyrazolotriazines with acetivated double bond system is described.