125655-89-2Relevant academic research and scientific papers
Chemoselective three component reactions of 3-aminopyrazoles, aldehydes and malononitrile: Optimize the structures and compute the energies of possible tautomers
Sheibani, Hassan,Saheb, Vahid,Rezaei, Marjan,Zahedifar, Mahboobeh
, p. 126 - 130 (2014/03/21)
A chemoselective synthesis of 7-amino-5-aryl-2-hydroxy-3- (aryldiazenylpyrazolo[1,5-α]pyrimidine-6- carbonitriles and 4-((7-amino-6-cyano-2-hydroxy-5-arylpyrazolo[1,5-α]pyrimidine-3-yl) diazenyl)benzenesulfonamides through three-component reaction of 3-am
STUDIES ON CONDENSED PYRAZOLES: SYNTHESIS OF NEW METHYL AND AMINO PYRAZOLOPYRIMIDINES AND OF PYRAZOLOTRIAZINES
Hilmy Elnagdi, Mohamed,Hassen Taha, Nadia,Abdel Maksoud Abd El All, Fatma,Maawad Abdel-Motaleb, Ramadan,Farouk Mahmoud, Fivian
, p. 1082 - 1091 (2007/10/02)
A variety of 3-arylazo 5-amino- and 7-aminopyrazolo-pyrimidines were obtained via reacting Ia-Id with cinnamonitriles.The structure of products was confirmed via 1H NMR.Both 5-amino- and 7-amino-3-arylazo pyrazolopyrimidines reacted, with protons in acetic acid-sulphuric acid mixture to yield the corresponding 3-unsubstituted acetylaminopyrazolopyrimidines.Diazotized Ia and Ib coupled with a variety of active methylene reagents to yield pyrazolotriazines.
