110810-00-9

Upstream product

• 58046-54-1 5-amino-1-phenyl-1H-pyrazole-4-carbohydrazide 
• 100-52-7 benzaldehyde 

Downstream Products

• 198716-01-7 1-Phenyl-6-thioxo-6,7-dihydro-1H-pyrazolo[3,4-d][1,3]thiazin-4-one 
• 198716-02-8 1-Phenyl-5-{[1-phenyl-meth-(E)-ylidene]-amino}-6-thioxo-1,5,6,7-tetrahydro-pyrazolo[3,4-d]pyrimidin-4-one 
• 174535-84-3 5-Amino-1-phenyl-6-thioxo-1,5,6,7-tetrahydro-pyrazolo[3,4-d]pyrimidin-4-one 
• 111423-01-9 1,5-diphenyl-6-thioxo-6,7-dihydro-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one 
• 111423-03-1 5-(4-Methoxy-phenyl)-1-phenyl-6-thioxo-1,5,6,7-tetrahydro-pyrazolo[3,4-d]pyrimidin-4-one 
• 156718-77-3 1-phenyl-6-thioxo-1,5,6,7-tetrahydro-4H-pyrazolo[3,4-d]pyrimidin-4-one 

Relevant academic research and scientific papers

Syntheis of Some New Pyrazolotriazines, Pyrazolothiazines and Pyrazolopyrimidines

When the pyrazole derivatives 3a,b were treated with triethyl orthoformate, the pyrazolotriazinethiones 5a,b were obtained.These were S-alkylated to give compounds 6a-d.Treatment of 5a,b with hydrazine hydrate in ethanol afforded 7,8 respectively.Benzylid

RING-CHAIN TAUTOMERISM OF ORTHO-AMINO-SUBSTITUTED AROMATIC CARBOXYLIC ACID HYDRAZONES, I. FORMATION OF 1,2,3,4-TETRAHYDRO-5H-1,3,4-BENZOTRIAZEPIN-5-ONES AND 5,6,7,8-TETRAHYDDRO-4H-PYRAZOLOTRIAZEPIN-4-ONES

Reactions of ortho-amino-substituted aromatic carboxylic acid N-methylhydrazides 1a, 1c with acetaldehyde and simple ketones gave condensed triazepinones 4, whereas the N-unsubstituted hydrazides 1b furnished hydrazones 3.The role of N-substitution is dis