136993-41-4

Upstream product

• 109-69-3 n-Butyl chloride 
• 136993-33-4 2-Benzyl-5-(4-chloro-phenyl)-6-thioxo-2,5,6,7-tetrahydro-pyrazolo[3,4-d]pyrimidin-4-one 
• 21377-11-7 3-Amino-1-benzylpyrazol-4-carbonsaeureethylester 
• 136993-32-3 1-Benzyl-3-[3-(4-chloro-phenyl)-thioureido]-1H-pyrazole-4-carboxylic acid ethyl ester 
• 138480-62-3 Ethyl 1-benzyl-3-isothiocyanatopyrazol-4-carboxylate 
• 2131-55-7 4-Chlorophenyl isothiocyanate 
• 106-47-8 4-chloro-aniline 

Relevant academic research and scientific papers

New Pyrazol Derivatives. IV. Preparation and Cyclization of Some Acceptor-Substituted N-(Pyrazol-3-yl)-thioureas

3-Aminopyrazol-4-carboxylic acid derivatives (1,2) were transformed by reaction with different isothiocyanates R2NCS to N-(pyrazol-3-yl)-N'-substituted thioureas (5,6).Ethyl 3-amino-1-benzylpyrazol-4-carboxylate reacts with CSCl2 to form ethyl