135104-22-2

Upstream product

• 135104-19-7 5-(4-Chloro-phenyl)-3,4-dihydro-2H-pyrazole-3-carboxylic acid hydrazide 
• 135104-14-2 2-(4-Chloro-phenyl)-3,3a-dihydro-5H-pyrazolo[1,5-d][1,2,4]triazin-4-one 

Downstream Products

• 144836-10-2 [2-(4-Chloro-phenyl)-4-oxo-4H-pyrazolo[1,5-d][1,2,4]triazin-5-yl]-acetic acid 

Relevant academic research and scientific papers

Synthesis of New 2-Aryl-3,3a-dihydro-4-oxo-5H-pyrazolotriazines and some of Their Derivatives

The preparation of new dihydropyrazolotriazinones involved the formation of carboxylic acid hydrazides via the appropriate ethyl aroylacrylates, followed by condensation with an orthoester.The synthesis of some derivatives substituted on the