112960-07-3

Upstream product

• 143-33-9 sodium cyanide 
• 112960-06-2 1-(3,5-dimethylphenyl)-5-(methylsulfonyl)-1H-pyrazole-4-carboxylic acid ethyl ester 
• 60481-36-9 (3,5-dimethylphenyl)hydrazine hydrochloride 
• 112960-04-0 5-amino-1-(3,5-dimethylphenyl)-1H-pyrazole-4-carboxylic acid ethyl ester 
• 112960-05-1 1-(3,5-dimethylphenyl)-5-(methylthio)-1H-pyrazole-4-carboxylic acid ethyl ester 
• 94-05-3 ethyl (ethoxymethylene)cyanoacetate 

Relevant academic research and scientific papers

1-phenylpyrazole-4,5-dicarboxylic acid derivatives, composition containing them, and pollen formation inhibiting method of using them

Pollen formation in cereal grain plants is inhibited by application of a 4,5-dicarboxy or 5-carboxamido-4-carboxy (or derivatized carboxy)-1-(3,5-disubstitutedphenyl)pyrazole. Use of the compounds facilitates the production of hybrid seed.

A New Synthesis of 1-Aryl-5-cyano-1H-pyrazole-4-carboxylic Acid, Ethyl Esters

A novel conversion of 5-amino-1-aryl-1H-pyrazole-4-carboxylic acid, ethyl esters to the corresponding 5-cyano esters is described.The process involves nonaqueous diazotation of the amine to form the methyl thioether, which is oxidized to the methyl sulfon