298217-11-5Relevant articles and documents
Corrosion inhibition performance of pyranopyrazole derivatives for mild steel in HCl solution: Gravimetric, electrochemical and DFT studies
Yadav, Mahendra,Gope, Laldeep,Kumari, Nilam,Yadav, Premanand
, p. 78 - 86 (2016)
Two pyranopyrazole derivatives namely, 6-amino-4-(4-methoxyphenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (AMPC) and 6-amino-4-(4-chlorophenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (ACPC) were synthesized and investig
Highly efficient solvent-free synthesis of pyranopyrazoles by a Bronsted-acidic ionic liquid as a green and reusable catalyst
Ebrahimi, Javad,Mohammadi, Ali,Pakjoo, Vahid,Bahramzade, Ehsan,Habibi, Amir
, p. 1013 - 1017 (2012)
A simple, green and efficient protocol for synthesis of dihydropyrano[2,3-c]pyrazole derivatives is developed by a four component reaction of various benzaldehydes, ethyl acetoacetate, hydrazine hydrate and malononitrile in the presence of 3-methyl-1-(4-s
Magnetization of biochar nanoparticles as a novel support for fabrication of organo nickel as a selective, reusable and magnetic nanocatalyst in organic reactions
Moradi, Parisa,Hajjami, Maryam
, p. 2981 - 2994 (2021/02/26)
Catalyst species are an important class of materials in chemistry, industry, medicine and biotechnology. Also, waste recycling is an important process in green chemistry and economic efficiency. Therefore, in order to recycle waste, biochar nanoparticles were prepared from chicken manure. Then, the biochar nanoparticles were magnetized under a green and environmentally friendly method. Finally, the surface of the magnetic biochar nanoparticles was modified and further they were applied as a novel support for fabrication of nickel as a homoselective and reusable catalyst in organic reactions. The structure of this organic-inorganic catalyst has been characterized by N2adsorption-desorption isotherms, and the SEM, EDS, WDX, XRD, TGA, AAS, FT-IR and VSM techniques. This magnetically recyclable catalyst was used in the homoselective synthesis of tetrazole and pyranopyrazole derivatives. This catalyst can be reused several times without significant loss of its catalytic efficiency. The heterogeneity and stability of this nanocatalyst were studied by hot filtration and the AAS technique. Also, the reused catalyst was characterized by the SEM, EDS, AAS and BET techniques.
Novel biocompatible core/shell Fe3O4?NFC?Co(ii) as a new catalyst in a multicomponent reaction: An efficient and sustainable methodology and novel reusable material for one-pot synthesis of 4: H -pyran and pyranopyrazole in aqueous media
Bagherzade, Ghodsieh,Eshghi, Hossein,Kargar, Pouya Ghamari
, p. 37086 - 37097 (2020/10/27)
Today, due to the developing need for inexpensive catalysts, recyclable magnetic nanocatalysts immobilized on polysaccharides possess many advantages over classical heterogeneous catalysts. However, cellulose has been an appealing material in catalysis sc
Preparation and characterization of nano-Co-[4-chlorophenyl-salicylaldimine-methyl pyranopyrazole]Cl2 as a new Schiff base complex and catalyst for the solvent-free synthesis of 1-amidoalkyl-2-naphthols
Moosavi-Zare, Ahmad Reza,Goudarziafshar, Hamid,Nooraei, Fatemeh
, (2019/11/13)
By the reaction of 4-chlorobenzaldehyde with ethyl acetoacetate, malononitrile, and hydrazine hydrate, 6-amino-4-(4-chlorophenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile was prepared and then reacted with salicylaldehyde and CoCl2/s
