Efficient Synthesis of Some New Chromenopyrimidine Azo- Dyes Catalyzed by Cu/SBA-15
作者:Afsaneh Zonouzi、Hanieh Amini Shahrezaee、Alireza Rahmani、Forouzan Zonouzi、Khosrou Abdi、Farzaneh T. Fadaei、Kurt Schenk
DOI:10.1080/00304948.2018.1462066
日期:2018.5.4
Kurt Schenk School of Chemistry, College of Science, University of Tehran, 14155–6455, Tehran, Iran Pharmaceutical and Cosmetic Research Center (PCRC), University of Tehran, Tehran, Iran Department of MedicinalChemistry and Radio Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran Institute of Chemical Sciences and Engineering, Ecole Polytechnique F ed erale de Lausanne
In this work, some new azotated 2H-chromene derivatives were successfully synthesized by use of mesoporous Cu-SBA-15 as nanocatalyst leading short reaction times and high yields. By this research, the scope of azo compounds was increased.
intermolecular contacts to the stability of the structures. The HL1ox-HL4ox ligands showed higher extraction performance for Cu(II) ion than Ni(II) and Zn(II) ions. The effect of pH on extraction capacity was investigated and the oxime compounds showed high extraction capacity at low pH values. The effects of the substitute groups (at the meta position of the phenol ring) on the extraction were investigated
Synthesis and antibacterial evaluation of diaminomaleonitrile-based azo-Schiff bases and 8,9-dihydro-7H-purine-6-carboxamides
作者:Ammar Sheykhi-Estalkhjani、Nosrat O. Mahmoodi、Asieh Yahyazadeh、Meysam Pasandideh Nadamani
DOI:10.1007/s11164-020-04175-y
日期:2020.8
Some new DAMN-based Schiffbase 6a–6g were synthesized via a condensation reaction of the corresponding azo dyes with 1-(2-amino-1,2-dicyanovinyl)-3-phenylurea. In continuation, facile synthesis of new 8,9-dihydro-7H-purine-6-carboxamide 7a–7g was reported via an efficient reaction of azo dyes and 1-(2-amino-1,2-dicyanovinyl)-3-phenylurea in the presence of triethylamine as catalyst. All the synthesized
New 1,2,4-triazole-based azo–azomethine dye. Part III: Synthesis, characterization, thermal property, spectrophotometric and computational studies
作者:Malihe Erfantalab、Hamid Khanmohammadi
DOI:10.1016/j.saa.2014.01.113
日期:2014.5
A new 1,2,4-triazole-based azo-azomethine compound, H2L, has been prepared by condensation reaction of 1-(3-formyl-4-hydroxyphenylazo)-4-ethylbenzene with prepared triazole-based diamine. The structure of H2L was characterized by using FT-IR, UV-Vis and (1)H NMR spectroscopic methods as well as elemental analysis. Hard model chemometrics method has been used to determine the formation constants of