81000-19-3Relevant academic research and scientific papers
Eco-friendly synthesis and biological evaluation of substituted pyrano[2,3-c]pyrazoles
Mandha, Santhosh Reddy,Siliveri, Sravanthi,Alla, Manjula,Bommena, Vittal Rao,Bommineni, Madhava Reddy,Balasubramanian, Sridhar
supporting information; experimental part, p. 5272 - 5278 (2012/09/07)
An ecofriendly green approach for synthesis of substituted pyrano[2,3-c]pyrazoles has been developed via a multicomponent one pot approach in aqueous ethanol medium under totally non-catalytic conditions. The synthesized compounds were evaluated for their
Synthesis of some new spiropyrazolo[4',5':5,6]pyrano[2,3-d]pyrimidines
Al-Thebeiti, Marzoog S.
, p. 621 - 628 (2007/10/03)
3-Methylpyrazolin-5-ones (1a,b) were reacted with cycloalkanones (2a-d) in the presence of fused sodium acetate to give the corresponding cycloalkylidene derivatives (3a-h). Reaction of compounds (3a-h) with malononitrile gave the pyrano derivatives (4a-h), which were cyclized to pyranopyrimidines with acetic anhydride/pyridine, formamide and formamide/formic acid.
ACTIVATED NITRILES IN HETEROCYCLIC SYNTHESIS : A NOVEL SYNTHESIS OF PYRANOPYRAZOLES
Abdou, Sadek,Fahmy, Sherif Mahmoud,Sadek, Kamal Usef,Elnagdi, Mohamed Hilmy
, p. 2177 - 2180 (2007/10/02)
A novel synthesis of pyranopyrazoles is reported via reaction of β-phenylacrylonitrile with 3-methyl-2-pyrazolin-5-ones.
