eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
218
227
3624
Microwave-assisted solvent-free synthesis and antibacterial evaluation of 1-azabicyclo[3.1.0]hexane-3-enes
Bagher Mohammadi
bagher.mohammadi@yahoo.com
1
Ebrahim Rezaei
e.rezai1358@gmail.com
2
Fouzieh Moghadami
fouziehm@yahoo.com
3
Payame Noor University of Abhar
Department of Chemistry, Payame Noor University, P. O. Box 19395-3697, Tehran, Iran
Department of Biology, Payame Noor University, P. O. Box 19395-3697, Tehran, Iran
This work described a simple and efficient method for the synthesis of 1-azabicyclo[3.1.0]hexane-3-ene derivatives. arylidenmalononitriles and hydroxylamine hydrochloride in the presence of NaOH, under microwave irradiation and solvent-free conditions produced the titled compounds in good to excellent yields. Using of simple chemicals, short reaction times, and solvent-free conditions, high yields of products, high atomic economy , and eco-friendly are the important advantages of this method. The antibacterial effect of 4-amino-2,6-bis(2,4-dichlorophenyl)-1-azabicyclo[3.1.0]hex-3-ene-3,5-dicarbonitrile was evaluated by minimum inhibitory concentration and disk diffusion method against the standard strains of Staphylococcus aureus and Pseudomonas aeruginosa. Minimum inhibitory concentrations of 2h were 40 and 30 mg/ml for P. aeruginosa and S. aureus respectively and the maximum inhibitory zones were 4 and 5 mm on average, respectively.
https://icc.journals.pnu.ac.ir/article_3624_8187cd75ff79d4a84a61feb4e7603886.pdf
Azabicyclo
microwave irradiation
antibactery
solvent-free
staphylococcus
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
15
28
3629
Performance comparison of graphene and graphene oxide-supported palladium nanoparticles as a highly efficient catalyst in oxygen reduction
Mir Reza Majidi
sr.majidi@gmail.com
1
Seyran Ghaderi
seyranghaderi@gmail.com
2
Faculty of Chemistry, University of Tabriz
Faculty of Chemistry, University of Tabriz, Tabriz
In this work, the performance of graphene nanosheets (GNs) and graphene oxide (GO) nanosheets, as a support for palladium nanoparticles (PdNPs) toward oxygen reduction reaction (ORR), was studied. The graphene nanosheets were functionalized by a new and simple method. The PdNPs were synthesized on a glassy carbon electrode (GCE) modified with GNs or GO via a potentiostatic method; without using any templates, surfactants or stabilizers. The surface morphology of the modified electrodes was studied by scanning electron microscopy, energy dispersive X-ray and X-ray diffraction techniques. Cyclic voltammetry and rotating disk electrode (RDE) voltammetry methods were used for calculation of electrochemical parameters of the ORR. The GCE modified with PdNPs-GO exhibited a higher catalytic activity in comparison with PdNPs-GNs toward ORR. The high electrocatalytic activity of PdNPs-GO/GCE was attributed to oxygen-containing groups that were formed on the GO during functionalization of graphene nanosheets. These groups act as anchoring sites for metal nanoparticles and improve their dispersion on GO nanosheets. Also, mechanism of ORR was intensively investigated and transferred electron numbers in reaction was calculated using RDE data analysis. Finally, stability of the modified electrodes was studied and the results confirmed that the GCE modified with PdNPs-GO has a long-term stability.
https://icc.journals.pnu.ac.ir/article_3629_1ad59668caa6da23c49280d257e46262.pdf
Oxygen reduction reaction
functionalization
graphene oxide nanosheets
Palladium nanoparticles
electrodeposition
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
228
241
3627
Synthesis, characterization and selective oxidation using a new copper (II) Schiff base complex derived from Alanine and 4-chloro3- formyl coumarin
Malihe Ebrahimpour
ebrahimpour.malihe@yahoo.com
1
Ghodsieh Bagherzade
gbagherzade@gmail.com
2
Ali Akbar Sajadi
sajadi@sharif.ac.ir
3
Rouhollah Khani
rouhollah.khani@birjand.ac.ir
4
Department of Chemistry, Faculty of Sciences, University of Birjand
Department of Chemistry, Faculty of Sciences, University of Birjand
Sharif University of Technology
Department of Chemistry, Faculty of Sciences, University of Birjand
A novel Schiff-base ligand (L: 2-[(4-chloro-2-oxo-2H-chromen-3-ylmethylene)-amino] propionic acid) was prepared from the reaction of 4-chloro3-formylcoumarin and alanine amino acid. Copper (II) complex was synthesized from the reaction of the ligand with Cu (OAc)2. H2O in ethanol. The ligand and its metal complex were characterized by elemental analysis (CHN), ICP, thermal analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), 1HNMR, and 13C NMR techniques. The complex was found to be an efficient catalyst and reusable in the selective oxidation of sulfides to the corresponding sulfoxides without the formation of any sulfone using the green oxidant, H2O2, at room temperature and under solvent-free conditions.
https://icc.journals.pnu.ac.ir/article_3627_b89e45068bc08202c4fdd9933f098e7d.pdf
Amino acid
Schiff base
copper complex
catalyst
selective oxidation
oxidation of sulfides
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
256
265
4594
Preparation of an oxetan-phenyltetrahydropyridazine-3,6-dione derivative using some chemistry tools
Paat Josefa
paat56@yahoo.com
1
figueroa Lauro
lauro_1999@yahoo.com
2
Lopez Maria
marylopez1658@yahoo.com
3
Hau Lenin
hlen78@yahoo.com
4
Diaz Francisco
stybium@yahoo.com
5
Garcia Elodia
elodiagarcia2@gmail.com
6
Pool Eduardo
josepool114b@yahoo.com
7
rosas Marcela
rnm67@hotmail.com
8
Mateu Virginia
mateuy651@yahoo.com
9
University Autonomous of Campeche
University Autonomous of Campeche
University Autonomous of campeche
University Autonomous of campeche
IPN
University Autonomous of campeche
University Autonomous of campeche
Universidad Veracruzana
Universidad veracruzana
The aim of this study was to synthesize a new oxetan-phenyltetrahydropyridazine-3,6-dione derivative (compound 6) using with different techniques. The first method was achieved by the preparation of a phenylhydrazine derivative (2) using three components system (3,17-aldol-estradiol, phenylhydrazine, 5-hexyn-3-ol) in presence of Copper(II). Then, 2 Was reacted with tert-butyldimethylsilyl chloride to form the compound 3 (trimethylbutan-silyloxy-steroid-hydrazine). Following, a pyridazine derivative (4); was prepared by the reaction of 3 with succinic acid using boric as catalyst. The compound 4 was reacted with hydrofluoric acid to form the a tetrahydropyridazine-3,6-dione (5). Finally, the preparation of 6 was carried out by the reaction of 5 with CopperII. Spectroscopy analyses NMR was used to confirm the chemical structure of compounds. In conclusion, in this study a facile method to synthesis of an oxetan-phenyltetrahydropyridazine-3,6-dione is reported.
https://icc.journals.pnu.ac.ir/article_4594_7956810b773bf2e8af357e7b71094a1c.pdf
steroid
derivative
phenylhydrazine
tetrahydropyridazine
oxetan
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
266
270
3630
Nano Al2O3/KF using for synthesis of some Hantzsch type-products
Asadollah Farhadi
farhadichem@put.ac.ir
1
Milad Ramyar
entredos1976@gmail.com
2
Mohammad Ali Takassi
takassi@put.ac.ir
3
Petroleum university of technology of ahwaz
Petroleum University of Technology, Faculty of Science, Ahwaz, Iran, 61981-44471
Petroleum University of Technology, Faculty of Science, Ahwaz, Iran, 61981-44471
A protocol for the synthesis of 1,4-dihydropyridines (Hantzsch type-products) was developed by means of a three-component condensation of an aldehyde, a β-dicarbonyl compound, ammonium acetate and nano Al2O3/KF as catalyst. This reaction was carried out under different conditions including i) solvent-free ii) and reflux in different solvents. In all conditions, the desired products were obtained in high yields after relatively short reaction times. Nevertheless, the reactions proceed faster and in higher yields when they were carried out in ethanol. Compared to the classical Hantzsch reaction conditions and previously reported protocols, this protocol has the advantages of consistently excellent yields and short reaction times. After the reaction, the catalyst could be recovered easily.
https://icc.journals.pnu.ac.ir/article_3630_1877699a86badad555eba2e97933b492.pdf
Hantzsch type-products
1
4-dihydropyridines
Nano Al2O3/KF
ethanol
different solvents
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
271
279
3674
Synthesis, characterization and polymerization of a novel acrylate monomer containing both 4H-pyran-4-one and 1,2,3-triazole moiety and evaluation of their antibacterial activity
Mahnaz Saraei
mahnaz_saraii@yahoo.com
1
Gholamreza Zarrini
zarrini@tabrizu.ac.ir
2
Parisa Rajabpour
parisa_rajabpour@yahoo.com
3
Department of Chemistry, Payame Noor University, PO BOX 19395-3697 Tehran, Iran
Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz-Iran
Department of Chemistry, Payame Noor University, PO BOX 19395-3697 Tehran, Iran
A novel acrylate monomer containing 4H-pyran-4-one and 1,2,3-triazole ring, {1-[4-(4-oxo-6-phenyl-4H-pyran-2-yl)benzyl]-1,2,3-triazol-4-yl}methyl acrylate was synthesized by the reaction of 2-{4-[(4-(hydroxymethyl)-1,2,3-triazol-1-yl)methyl]phenyl}-6-phenyl-4H-pyran-4-one with acryloyl chloride in the presence of triethylamine. The structure of the acrylate monomer was established on the basis of FT-IR, 1H NMR, 13C NMR, MS and elemental analysis. This monomer was polymerized using 2,2´-azobisisobutyronitrile (AIBN) as the initiator in N,N-dimethylformamide solution. Thermal stability of the polymer was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The synthesized compounds were evaluated for their antibacterial activity against Gram-positive and Gram-negative bacteria using the disk diffusion method. The results of antibacterial assay indicated that these compounds exhibited moderate bactericidal activity.
https://icc.journals.pnu.ac.ir/article_3674_e64fb2607dc58caa7a8a30070f0fccf1.pdf
4H-Pyran-4-one
triazole
acrylate monomer
antibacterial activity
free radical polymerization
thermal properties
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
280
292
3675
The theoretical study of adsorption of HCN gas on the surface of pristine, Ge, P and GeP-doped (4, 4) armchair BNNTs
Mahdi Rezaei Sameti
mrsameti@gmail.com
1
Fateme Ataeifar
2
Physical chemistry departement, Facualty science
Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, 65174, Iran
In this research, the effects of HCN adsorption on the surface of the pristine, Ge, P, and GeP doped boron nitride nanotube (BNNTs) are investigated by using density function theory at the B3LYP/6–31G(d, p) level of theory. At the first step, we consider different configurations for adsorbing HCN molecule on the surface of BNNTs. The optimized models are used to calculate the structural, electrical, NQR parameters and quantum descriptors such as global hardness, global softness, electrophilicity, gap energy, Fermi level energy, electronic chemical potential, and electronegativity of BNNTs/HCN complex. Inspection of results demonstrates that with doping Ge impurity the sensivity of BNNTs for adsorbing HCN molecule increase significantly from original values. The adsorption of HCN molecule on the surface of Ge-doped is more stable and favourable than other those models. With adsorbing of HCN gas and doping of Ge and GeP the NQR, quantum molecular descriptors and molecular orbital energies of the nanotube alter significantly from original state. On the other hand the electrophilicity index of E model is more than those other models.
https://icc.journals.pnu.ac.ir/article_3675_69222eac71802bb543043585a51e2ebb.pdf
BNNTs
HCN adsorption
DFT
NQR
DOS
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
293
299
3832
Facile and convenient synthesis of 2-amino-5,10-dioxo-4-aryl-5,10-dihydro-4H-benzo[g]chromene-3-carbonitrile derivatives by electrocatalytically chemical transformation
Zahra Vafajoo
zahravafajoo@yahoo.com
1
Davood Kordestani
davood_k82@yahoo.com
2
Saba Vafajoo
saba_vafajoo@yahoo.com
3
Department of Chemistry, Shahr-e-Qods Branch, Islamic Azad University,Tehran, Iran
Department of Chemistry, Shahr-e-Qods Branch, Islamic Azad University,Tehran, Iran
Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran
2-Amino-5,10-dioxo-4-aryl-5,10-dihydro-4H-benzo[g]chromene-3-carbonitrile derivatives are obtained in excellent yields with a simple and efficient procedure.This reaction can occur using electrocatalytic multicomponent chain transformation of aryl aldehydes, 2-hydroxynaphthalene-1,4-dione and malononitrile under neutral and mild conditions. Moreover, electrolysis is done in CH3CN as solvent, Tetrabutylammonium fluoride (TBAF) as an effective supporting electrolyte and an iron electrode as the cathode and a graphite electrode as the anode in undivided cell. Also Excellent conversions of the starting materials were obtained under 10 mA/cm2 current densities after 0.54 F/mol of electricity had been passed and I=50 mA at room temperature. The key advantages of this method are the high yields, simple work up the non-chromatographic purification of products.
https://icc.journals.pnu.ac.ir/article_3832_a7025a909901865acf9d61407993a241.pdf
2-Amino-4H-chromene
multicomponent
electrosynthesis
2-hydroxynaphthalene-1
4-dione
eng
Iranian chemical communication
2423-4958
2345-4806
2018-07-01
6
Issue 3, pp. 218-324, Serial No. 20
300
311
3838
Electrochemical sensing of dopamine in the presence of ascorbic acid using carbon paste electrode modified with molybdenum Schiff base complex/1-butyl-3-methylimidazolium tetrafluoroborate
Hamid Reza Zare-Mehrjardi
zareanalyst@gmail.com
1
Department of Chemistry, Payame Noor University, PO BOX 19395-3697 Tehran, Iran
In this paper, the carbon paste electrode (CPE) is modified using an ionic liquid (1-Butyl-3-methylimidazolium tetrafluoroborate, [BMIM]BF4) and the cis-dioxo-bis[3-methoxy-2,2-dimethylpropanediamine] molybdenum(VI) complex (cis-[Mo(O)2L]). In order to study of the electrochemical behavior of ascorbic acid (AA) and dopamine (DA) at the surface of the prepared CPEs, the differential pulse and cyclic voltammetric methods (DPV and CV) were used. The percent of the [BMIM]BF4 in the matrix of the modified CPE is optimized, and then the effect of the pH of the buffered solution on the electrode response and the resolution between the anodic peaks of AA and DA is studied by CV and DPV. These results reveal that by application of the modified CPE a peak resolution about 325mV is obtained for AA and DA and the linear range for AA and DA in buffered solutions of pH 5.0 is acquired in the range from 5.0×10−7 to 1.0×10−3 M. The respective limits of detection (S/N = 3) were 1×10−7 M and 2×10−7 M for DA and AA, respectively. Surface regeneration and the very easy preparation of the modified CPE together with the very good peak resolution and sub-micromolar detection limits designate the prepared CPE in this work appropriate for simultaneous voltammetric determination of DA and AA.
https://icc.journals.pnu.ac.ir/article_3838_c9e3ebc0940034f7e0dac4d49b5b5db9.pdf
Molybdenum Schiff base complex
[BMIM]BF4
dopamine
ascorbic acid
voltammetry