1156510-01-8Relevant academic research and scientific papers
Sulfamic acid as a green, reusable catalyst for stepwise, tandem & one-pot solvent-free synthesis of pyrazole derivatives
Konkala, Veera Swamy,Dubey, Pramod Kumar
, p. 1571 - 1576 (2017)
Sulfamic acid (SA) is a bi-functional, cost-effective and reusable green catalyst for the synthesis of 4-(pyrazol-4-yl)methylenepyrazol-5(4H)-one derivatives by one-pot, three-component condensation of pyrazol-4-carbaxaldehydes, β-ketoesters and phenyl hydrazine (Route-I). In addition to this method, another simple condensation of pyrazol-4-carbaxaldehydes with pyrazolone in the presence of SA under the solvent-free condition in good yield is reported. The merits of these protocols are mild conditions, non-aqueous workup, high yields, easy availability of the catalyst, no chromatographic separation and inexpensive solid acid catalyst. Furthermore, SA could be recycled and reused for five times without losing its catalytic activity.
ZnO nanoparticles as reusable heterogeneous catalyst for efficient one pot three component synthesis of imidazo-fused polyheterocycles
Swami, Suman,Devi, Nisha,Agarwala, Arunava,Singh, Virender,Shrivastava, Rahul
, p. 1346 - 1350 (2016)
An efficient, simple, environmentally benign synthetic protocol is developed for synthesis of biologically and medicinally relevant pyrazole coupled imidazo[1,2-a]pyridine derivatives via three component reaction of alkyl-4-formyl-1-phenyl-1H-pyrazole-3-c
A new class of efficient 4-[(nitro substituted-phenyl)-hydrazonomethyl]-1-phenyl-1H-pyrazole-3-carboxylate derived colorimetric chemosensor for selective sensing of fluoride and other biologically important anions
Swami, Suman,Agarwala, Arunava,Malik, Babita,Shrivastava, Rahul
, p. 1451 - 1457 (2016/09/19)
A new class of efficient colorimetric chemosensors derived from 4-[(nitro substituted-phenyl)-hydrazonomethyl]-1-phenyl-1H-pyrazole-3-carboxylate have been synthesized and characterized. The synthesized receptors exhibit instant color change from yellow t
