Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Zeinab Dalirnasab"'
Publikováno v:
Microchimica Acta. 183:449-456
Magnetite (Fe3O4) nanoparticles were coated with tannic acid to give nanoparticles (NPs) of the type Fe3O4@TA and are shown to be a viable sorbent for preconcentration of Cd2+, Co2+ and Cr3+. The size, morphology, composition, and properties of the F
Publikováno v:
Canadian Journal of Chemistry. 93:546-549
Silica sulfuric acid magnetic nanoparticles efficiently catalyze the one-pot, three-component reaction of isatins and malononitrile with dimedone, 1,3-dimethylbarbituric acid or 4-hydroxycoumarin in EtOH–H2O to afford the corresponding spiro[2-amin
Publikováno v:
Research on Chemical Intermediates. 41:10007-10016
Magnetite sulfuric acid (Fe3O4–SO3H) magnetic nanoparticles have been used as a heterogeneous, recyclable, and efficient catalyst for synthesis of mono and bis-[3,3-di(indolyl)indolin-2-ones] in good yields at room temperature under ultrasonic irra
Publikováno v:
Research on Chemical Intermediates. 41:7427-7435
New S-alkyl O-hydrogen sulfothioate functionalized silica-coated magnetic nanoparticles were prepared in a simple method and evaluated as an efficient catalyst in synthesis of mono- and bis-spiro-2-amino-4H-pyrans through three or pseudo-five compone
Publikováno v:
Synthesis. 46:3180-3184
Alkanedisulfamic acid-functionalized silica-coated magnetic nanoparticles (ADSA-MNPs) were prepared by a simple method and evaluated as efficient catalysts for the preparation of mono-, bis-, and tris[bis(4-hydroxycoumarinyl)methanes] through condens
Publikováno v:
Synthesis. 46:917-922
Novel magnetite–sulfuric acid (Fe 3 O 4 ·SO 3 H) magnetic nanoparticles were prepared by the direct reaction of chlorosulfonic acid with magnetite nanoparticles, and characterized by IR spectroscopy, thermogravimetric analysis, X-ray diffraction,
Publikováno v:
Synthesis. 45:3300-3304
Sulfuric acid functionalized silica-coated magnetic nanoparticles (SSA-MNPs) were prepared by a simple method and evaluated as efficient catalysts for the condensation reaction of 6-amino-1,3-dimethyluracil with mono-, di-, or trialdehydes to give th
Autor:
Mohammad Solimannejad, Akbar Zendehnam, Peyman Zolgharnein, Azam Khodadadi, Meysam Sourinia, Zeinab Dalirnasab, Zeinab Jafarzadeh, Ali Reza Karimi
Publikováno v:
Volume: 40, Issue: 4 602-612
Turkish Journal of Chemistry
Turkish Journal of Chemistry
New thermally stable metallo-phthalocyanines bearing dibenzoxanthenes as highly organo-solubilizing aromatic hydrocarbon substituents were successfully prepared by cyclotetramerization of corresponding phthalonitriles with anhydrous metal salts [Zn(C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e4c0bef7267160a45813c0276d239eb
https://dergipark.org.tr/tr/pub/tbtkchem/issue/34953/387765
https://dergipark.org.tr/tr/pub/tbtkchem/issue/34953/387765
Autor:
Abbas Teimouri, Mostafa Roosta, Aseyeh Ghaedi, Amin Zarei, Alireza Najafi Chermahini, Zeinab Dalirnasab, Fariborz Momenbeik
Publikováno v:
Journal of Heterocyclic Chemistry. 47:913-922
5-Aryl-1H-tetrazoles (II) are obtained from aromatic nitriles and sodium azide in the presence of montmorillonite K-10 or kaolin as catalyst.
Autor:
Hossein A. Dabbagh, Masoud Nasr-Esfahani, Zeinab Dalirnasab, Alireza Najafi Chermahini, Abbas Teimouri
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 820:7-11
Computational calculations at B3LYP/6-31++G(d,p) level were employed in the study of the predominant tautomeric forms of 1-H and 2-H tetrazole derivatives (5-NO2, 5-CF3, 5-F, 5-H, 5-NH2, 5-OH, 5-CH3) in the gas phase and solution using PCM model. For