2024-03-19T08:46:03Z
https://icc.journals.pnu.ac.ir/?_action=export&rf=summon&issue=934
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 4. pp. 230-306, Serial No. 25
Friedel-Crafts alkylation of indoles with epoxides using PW12-APTES@SBA-15
Hamid
Aliyan
H3PW12O40 (PW12) was immobilized over mesoporous alumina through the reaction of mesoporous alumina functionalized 3-aminopropyl triethoxy silane (3-APTES) and PW12. The surface properties of the functionalized nanocomposite was analyzed by a series of characterization techniques like elemental analysis, FTIR and XRD. XRD and adsorption–desorption analysis shows that the mesostructure of silica remains intact after various modifications, while spectral technique show the successful grafting of the neat PW12 inside the porous silica support. 3-Alkylindole derivatives were produced by ring opening of epoxides in the presence of PW12-APTES@ SBA-15 nanocomposites as an efficient catalyst. The catalyst can be reused for several times but it will be less active.
Friedel-Crafts alkylation
indole
epoxide
SBA-15
heterogeneous catalysis
polyoxotungstate
2019
10
01
230
238
https://icc.journals.pnu.ac.ir/article_3871_50aa51ca6cdd355a2f3f8d7b3047d64b.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 4. pp. 230-306, Serial No. 25
Application of ZrO2–SO3H as highly efficient recyclable nano-catalyst for the green synthesis of fluoroquinolones as potential antibacterial
Ahmad
Nakhaei
Abolghasem
Davoodnia
Sepideh
Yadegarian
Various antibacterial fluoroquinolone compounds were prepared by the direct amination of 7-halo-6- fluoroquinolone-3-carboxylic acids with variety of piperazine derivatives and (4aR,7aR)-octahydro-1H-pyrrolo[3,4-b] pyridine using Zirconia Sulfuric Acid (ZrSA) nanoparticle, as a catalyst in refluxing water. The results showed that ZrSA exhibited high catalytic activity towards the synthesis of fluoroquinolone derivatives, with the desired products being formed in high yields. Furthermore, the catalyst was recyclable and could be reused at least three times without any discernible loss in its catalytic activity. Overall, this new catalytic method for the synthesis of fluoroquinolone derivatives provides rapid access to the desired compounds in refluxing water following a simple work‐up procedure, and avoids the use of harmful organic solvents. This method therefore represents a significant improvement over the methods currently available for the synthesis of fluoroquinolone derivatives.
Fluoroquinolone derivatives
antibacterial
fast and green synthesis
zirconia sulfuric acid (ZrSA)
2019
10
01
239
250
https://icc.journals.pnu.ac.ir/article_3892_be9b2d6d00717d03148f30397ee40b08.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 4. pp. 230-306, Serial No. 25
Cyanation and bromination of electron-rich aromatics by BrCN under solvent-free conditions catalyzed by AlCl3: A new examples of Beckmann-type rearrangement
Nader
Noroozi Pesyan
Ali
Gharib
Azam
Monfared
A convenient route for cyanation and bromination of some electron-rich aromatics (anisole, 1,3-dimethoxybenzene, 1,4-dimethoxybenzene, 1,3,5-trimethoxybenzene and β-naphthol) by BrCN in the presence of aluminum trichloride (AlCl3), as catalyst, by grinding method under solvent-free conditions at room temperature to 60 °C was described in good yield. The structures of all obtained products were characterized by FT-IR, 1H NMR, 13C NMR, and Mass spectrometry techniques. Anisole and 4-cyanobenzonitrile afforded both cyanated and brominated products. 1,3-Dimethoxybenzene yielded to two types of the cyanated products. 1,4-Dimethoxybenzene has done some unusual coupling reactions via new Beckmann-type rearrangement. No bromination of 1,4-dimethoxybenzene was observed under the same conditions. 1,3,5-Trimethoxybenzene and β-naphthol obtained both cyanated and brominated products which were analyzed by HPLC technique.
BrCN
Electron-rich aromatic compounds
Aluminum trichloride
solvent-free
Intramolecular hydrogen bond
Beckmann-type rearrangement
2019
10
01
251
263
https://icc.journals.pnu.ac.ir/article_3925_6dafb0e79c3f5856c2ff593b6f28d69b.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 4. pp. 230-306, Serial No. 25
Synthesis, characterization, antibacterial activity and molecular modeling studies of Ni(II) and Zn(II) complexes with phenylpyridylformamidine ligand
Ghobad
Mansouri
Massoud
Ghobadi
The Ni(II) and Zn(II) complexes with phenylpyridylformamidine (PhPyF) ligand, [Ni(PhPyF)Cl2] and [Zn(PhPyF)Cl2], have been prepared and investigated using different chemical techniques such as elemental analysis, molar conductance, FT-IR, UV-vis spectra and magnetic moment. The obtained chemical analysis data showed the formation of 1:1 (metal: ligand) ratio. The square planar and tetrahedral geometry for NiL and ZnL respctively, were suggested on the basis of magnetic moment, spectral data and molecular modeling studies. The free ligand and its metal complexes have been tested in vitro against a number of bacteria (Gram-negative and Gram- positive) in order to assess their antibacterial activities.Keywords: Ni (II) and Zn(II) complexes, Phenylpyridylformamidine, molecular modeling.
Ni (II) and Zn(II) complexes
phenylpyridylformamidine
molecular modeling
2019
10
01
264
271
https://icc.journals.pnu.ac.ir/article_5551_9fc2cff4af6e84d8351b3145f63fd82a.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 4. pp. 230-306, Serial No. 25
Molecular docking studies on xanthohumol derivatives as novel anticancer agents
Mohsen
Oftadeh
Masood
Fereidoonnezhad
Mina
Aliyan
Fariba
Aliyan
A set of Xanthohumol derivatives were selected and molecular docking studies of these compounds on thioredoxin reductase were conducted. Based on new structural patterns using in silico-screening study, new potent lead compounds were designed. The results due to validated docking protocols lead to find that Thr58, Gly57, Gly21, Asp334, Glu163, Ala130, IIe332, Val44 and Gly132 are the main amino acids in the active site cavity in charge of essential interactions with thioredoxin reductase.
In silico-screening
xanthohumol
cytotoxicity activity
molecular docking
thioredoxin reductase
active site cavity.
2019
10
01
272
284
https://icc.journals.pnu.ac.ir/article_5565_95464b14f62adb65f59090bb4dd0d0f3.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 4. pp. 230-306, Serial No. 25
Development of ultrasound-assisted emulsification microextraction for the determination of trace zinc and copper by flame atomic absorption spectrometry
Shahryar
Abbasi
Mahmoud
Roushani
Hadi
Noorizadeh
In this work, we developed a method based on ultrasound-assisted emulsification microextraction (USAEME) for the determination of zinc and copper by flame atomic absorption spectrometry (FAAS). The method is based on the use of the organic solvent carbon tetrachloride (CCl4) as an extraction solvent. In order to obtain a high enrichment factor, the effect of different parameters affecting the complex formation and extraction conditions (such as the type and volume of the extraction solvent, pH, the chelating agent amount, extraction time, extraction temperature and ionic strength) were tested. Under optimum conditions, the eight replicates mixture of the 100 ngmL-1 and 50 ngmL-1 for Zn(II) and Cu(II) ions, gave a mean absorbance of 0.055 and 0.061, with a relative standard deviation (RSD) of ±%3.2 and 2.9, respectively. The equations for the lines were A = 0.4921C + 0.0027 (R = 0.9998) and A = 1.0701C + 0.0032 (R = 0.9997), respectively. The limit of detection for Zn (II) and Cu(II) ions were 1.06 and 1.4 ngL−1, respectively. The calibration graph was linear in the range of 3.0–2000.0 ngmL−1 and 2.0-850.0 ngmL−1 for Zn and Cu respectively. In the proposed procedure, enhancement factors were 9.51 and 6.25 for Zn and Cu, respectively. This proposed method was successfully applied in the analysis of four real environmental water samples and good spiked recoveries over the range of 98.4–103.0% were obtained. This is a first research used USAEME for simultaneous determination Zn and Cu in water.
Preconcentration
ultrasound-assisted emulsification microextraction silver
water pollution
zinc
copper
2019
10
01
285
294
https://icc.journals.pnu.ac.ir/article_5618_228d85746f331a7f85bf4c6cc2800837.pdf
Iranian chemical communication
2423-4958
2423-4958
2019
7
Issue 4. pp. 230-306, Serial No. 25
Synthesis and characterization of MCM-41@L-Arginine@Pd(0) and its excellent catalytic activity as recyclable heterogeneous catalyst for Suzuki-Miyaura cross-coupling reaction
Somayeh
Nazarzadeh
Arash
Ghorbani-Choghamarani
Elham
Tahanpesar
MCM-41@L-Arg@Pd(0) has been prepared by some consequence reactions. This nano structural material has been characterized via different technique including: XRD, TGA, BET, EDS, X-Ray maps, SEM, ICP-OES and FT-IR analysis. The synthesis of a variety of biphenyl compounds has been achieved successfully via a reaction of aryl halides with arylboronic acids in the presence of this nanostructure (MCM-41@L-Arg@Pd(0)) as green, mild, and versatile catalyst. Mild reaction conditions with excellent conversions of products and simple product isolation procedure are noteworthy advantages of this new methodology and catalyst. Recyclability and reusability of the newly synthesized catalyst make this protocol environmentally benign.
Heterogeneous catalyst
MCM-41
L-arginine
aryl halide
cross-coupling
arylboronic acid
2019
10
01
295
306
https://icc.journals.pnu.ac.ir/article_7662_675441195182d945e0f9c9d80d274503.pdf