16324-07-5

Upstream product

• 63389-80-0 N-phenylaminotriphenylphosphoranimine 
• 762-42-5 dimethyl acetylenedicarboxylate 
• 257281-29-1 2,3-bis(methoxycarbonyl)-1,1,1-triphenyl-4-phenylamino-4-aza-1-phosphabuta-1,3-diene 

Relevant academic research and scientific papers

A regioselective synthesis of 5-pyrazolones and pyrazoles from phosphazenes derived from hydrazines and acetylenic esters

Efficient and regioselective syntheses of 1-phenyl-5-pyrazolones substituted with a phosphoranylidene group in the 3-position and of 3- alkoxycarbonyl-5-methoxy-1-phenyl pyrazoles are described. The key step is the formation of functionalized hydrazones b