145490-47-7Relevant academic research and scientific papers
Studies with Alkylheteroaromatic Carbonitriles: A Novel Sythesis of Pyrazolobenzo-1,2,4-triazine
El-Ghandour, Ahmed Hafez Hussein,Ibrahim, Mohamed Kamal Ahmed,Abdel-Hafiz, Ibrahim Saad,Elnagdi, Mohamed Hilmy
, p. 1628 - 1632 (2007/10/02)
A novel synthesis of derivatives of the title ring system by reacting methylpyrazolo-1,2,4-triazin-6-carbonitriles (9) with sulphur and subsequent treatment of the resulting thienopyrazolotriazines with acetivated double bond system is described.
STUDIES WITH ALKYLHETEROCYCLIC CARBONITRILES: A NOVEL SYNTHETIC ROUTE TO SEVERAL NEW ANNELATED PYRAZOLO-1,2,4,-TRIAZINE DERIVATIVES
Elghandour, Ahmed H. H.,Zohdi, Hussein F.,Afeefy, Hussein Y.,Ibrahim, Mohamed K. A.
, p. 297 - 302 (2007/10/02)
3-Phenylpyrazol-5-yl diazonium chloride (1a) was coupled with 2-aminocrotonitrile (4) to afford 4-phenyl-6-methylpyrazolo-1,2,4-triazine-7-carbonitrile (5).Upon reaction with sulfur, compound 5 was transformed into 8-amino-4-phenylthienopyra
