Ultrasound-assisted efficient synthesis and antimicrobial evaluation of pyrazolopyranopyrimidine derivatives using starch functionalized magnetite nanoparticles as a green biocatalyst in water

NiFe2O4@B,N,F-tridoped CeO2 (NFTDNC): a mesoporous nanocatalyst in the synthesis of pyrazolopyranopyrimidine and 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives and as an adsorbent

“…Based on already published reports, 66,67 the most plausible mechanism for the synthesis of pyrazolopyranopyrimidine is shown in Scheme 3. In the first step, ethyl acetoacetate (1) and hydrazine hydrate (2) condensed and formed an intermediate i.e.…”

Greener design and characterization of biochar/Fe3O4@SiO2–Ag magnetic nanocomposite as efficient catalyst for synthesis of bioactive benzylpyrazolyl coumarin derivatives

“…Green solvent and efficient heterogeneous catalysts can substantially improve the synthetic utility of this kind of protocol. 1–6…”

“…Green solvent and efficient heterogeneous catalysts can substantially improve the synthetic utility of this kind of protocol. [1][2][3][4][5][6] Researchers have recently become interested in biochar (BC), a renewable carbonaceous material made by thermochemical pyrolysing naturally occurring bio-waste in the lack of oxygen, due to its distinctive and fascinating physicochemical properties i.e. low cost, carbon-rich, high stability, non-toxicity, high porosity, adjustable surface function, and large specic surface area.…”

Research on the catalytic activity of MNP-[Dop-OH]-CuBr2 nanocomposites: novel and stable reusable nanocatalysts for the synthesis of 1,3,5-triazine derivatives

“…Due to the importance and various applications of catalysts in the elds of oil, automobile, pharmaceutical and food industries, they signicantly relate fundamental and applied sciences to new technologies. [1][2][3] The modern science of chemistry, especially in the eld of catalysis, involves the use of nanoparticles and nanomaterials in chemical reactions. 4 With the introduction of nano technology into the industry of catalysts, nanocatalysts have gained much interest.…”