1360461-79-5

Upstream product

• 1245458-95-0 ethyl 3-(4-chlorophenyl)-1-(2-oxo-2-phenylethyl)-1H-pyrazole-5-carboxylate 

Downstream Products

• 1360461-88-6 2-(4-chlorophenyl)-5,8-dihydro-7-phenyl-4H-pyrazolo[5,1-d][1,2,5]triazepin-4-one 

Relevant academic research and scientific papers

Expeditious synthesis and single crystal structure of new pyrazole-fused 1,4-oxazine

A series of 2,6-diphenyl-4H-pyrazolo[5,1-c][1,4]oxazin-4-ones has been synthesized via a lactonization of 1-(2-oxo-2-phenylethyl)-3-phenyl-1H-pyrazole- 5-carboxylic acids in the presence of Ac2O at reflux temperature. The products were isolated by simple filtration in excellent yields and were characterized by IR, 1H-NMR, and HRMS. The molecular structure was confirmed by the X-ray crystal analysis of one compound that was prone to crystallization.