89335-00-2

Upstream product

• 89334-96-3 1-phenyl-3-methyl-4-yl-(1'-phenyl-3'-methyl-2'-pyrazolin-5'thione)-2-pyrazolin-5-one 
• 22717-42-6 3-methyl-1-phenyl-1H-pyrazole-5(4H)-thione 
• 100-63-0 phenylhydrazine 

Downstream Products

• 148082-16-0 3-(4-Isoxazolyl)-4-methyl-1,6-diphenylthieno<2,3-c:5,4-c'>dipyrazole 
• 148082-20-6 3-(1-Formyl-1-cyanomethyl)-1,6-diphenyl-4-methylthieno<2,3-c:5,4-c'>dipyrazole 
• 148082-11-5 3-(1-Formyl-2-dimethylaminoethenyl)-4-methyl-1,6-diphenylthieno<2,3-c:5,4-c'>dipyrazole 

Relevant academic research and scientific papers

STUDIES ON THE VILSMEIER-HAACK REACTION. PART XII. NOVEL HETEROCYCLO-SUBSTITUTED THIENODIPYRAZOLE DERIVATIVES

Only one 3-methyl group of 4,4'-bi-4H-pyrazole-5,5'(1H,1'H)-one (-thione) (I) has been found to undergo diformylation, chloro substitution of carbonyl group in the 5-position, and the cyclization of the 5-chloro-3-(2-amino-1-formylethenyl) derivative in o