82805-66-1Relevant articles and documents
6-Amino-5-cyano-1H,4H-pyrazolo[3,4-b]pyrans
Sharanina,Promonenkov,Marshtupa,Pashchenko,Puzanova,Sharanin,Klyuev,Gusev,Gnatusina
, p. 607 - 611 (2007/10/02)
The reaction of 3-methyl-1-phenyl-5-pyrazolene with arylideneamino nitriles in alcohol leads to the formation of 3-methyl-4(1-aryl-2,2-dicyanoethyl)-5-pyrazolones, which are readily cyclized in the presence of bases to the corresponding 6-amino-5-cyano-3-