1351767-91-3Relevant academic research and scientific papers
A catalyst-free green protocol for the synthesis of pyranopyrazoles using room temperature ionic liquid choline chloride-urea
Swaroop, Toreshettahally R.,Kumar, Kothanahally S. Sharath,Palanivelu, Mariyappan,Chaitanya, Somu,Rangappa, Kanchugarakoppal S.
, p. 1866 - 1870 (2014)
An efficient and rapid four component reaction of aldehydes, malanonitrile, β-ketoesters and hydrazine hydrate (or phenyl hydrazine) in environmentally benign room temperature ionic liquid choline chloride-urea has been developed for the synthesis of substituted 4H-pyrano[2,3-c]pyrazoles.
An efficient four-component synthesis of multisubstituted pyrano[2,3-c]pyrazole
Ablajan, Keyume,Maimaiti, Zulipiya
, p. 1959 - 1966 (2012/06/18)
A series of substituted pyrano[2,3-c]pyrazole derivatives were synthesized by a one-pot reaction of methyl 4-methyl-3-oxovalerate, phenylhydrazine, aromatic aldehyde, and malononitrile in ethanol with catalysis by triethylamine. The title compounds were o
