117378-01-5Relevant articles and documents
A New Synthesis of 1-Aryl-5-cyano-1H-pyrazole-4-carboxylic Acid, Ethyl Esters
Beck, James R.,Ackmann, Stephen A.,Staszak, Michael A.,Wright, Fred L.
, p. 955 - 958 (2007/10/02)
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