121998-98-9

Upstream product

• 121998-96-7 4-dicarboethoxymethyl-3-methyl-1-phenyl-2-pyrazoline-5-thione 
• 121998-91-2 4-bromo-3-methyl-1-phenyl-2-pyrazoline-5-thione 
• 22717-42-6 3-methyl-1-phenyl-1H-pyrazole-5(4H)-thione 

Relevant academic research and scientific papers

Synthesis of 4-substituted 3-methyl-1-phenyl-2-pyrazoline-5-thiones by heterocycles

4-bromo-3-methyl-1-phenyl-2-pyrazoline-5-thiones was reacted with the sodium salt of some reactive methylene compounds and then condensed with hydrazine hydrate, phenylhydrazine, hydroxylamine hydrochloride, urea and thiourea to obtain 4-substituted 3-met