913607-91-7

Upstream product

• 5417-82-3 (1-ethoxyethylidene)malononitrile 
• 5346-56-5 5-amino-3-methyl-1-phenyl-1H-pyrazole-4-carbonitrile 
• 103-72-0 phenyl isothiocyanate 

Downstream Products

• 947619-40-1 6-hydrazino-3-methyl-1,5-diphenyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-imine 
• 1021358-98-4 3-methyl-6-(methylthio)-1,5-diphenyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-imine 

Relevant academic research and scientific papers

A new approach to the synthesis of fused pyrazoles: The synthesis of new pyrazolo [4,3-e][1,2,4]triazolo-[4,3-a]pyrimidine-4(5H)-imines

A new route for the synthesis of pyrazolo[4,3-e][1,2,4]triazolo[4,3-a] pyrimidine-4(5H)-imines has been delineated through heterocyclization of suitably functionalized pyrazoles with phenylisothiocyanate followed by methylation, nucleophilic displacement

Microwave-assisted synthesis of substituted pyrazoles and pyrazolo [3,4-d]thiopyrimidines

Ethyl(ethoxymethylene)cyanoacetate and ethoxymethylene malononitrile were synthesized from the reaction of malononitrile or ethylcyanoacetate with triethyl orthoformate or orthoacetate in N, N-dimethylacetamide under microwave irradiation. In a similar manner, substituted pyrazoles were synthesized from the reaction of ethyl (ethoxymethylene)cyanoacetate and ethoxymethylene malononitrile with phenylhydrazine. These pyrazoles were converted to pyrazolo[3,4-d]thiopyrimidines upon treatment with arylisothiocyanate and thiourea under microwave irradiation. Copyright Taylor & Francis Group, LLC.