ORIGINAL_ARTICLE
Furocoumarins from Heracleum rawianum in Iran
The species Heracleum rawianum belongs to Apiaceae, is one of the native species in Iran. The leaves and fruits of Heracleum rawianium are used traditionally in Iran as flavouring agent and spice for food. In the present work, the extraction of aerial parts of this plant with acetone by maceration is described. Our phytochemical analysis of the chloroform extract of the aerial parts of this plant afforded three condensed furocoumarins. Furocoumarins such as angelicin (in remarkable amount), allobergapten and sphondin were isolated and identified by IR, 1H-NMR, 13C-NMR and DEPT-135 spectroscopic data, MS spectrometery and camparison with the literature. To the best of our knowledge, no phytochemical investigations on this species have been reported.
https://icc.journals.pnu.ac.ir/article_1143_fa8d33dc5428c473458531e43335a2f1.pdf
2015-01-01
1
5
Allobergapten
angelicin
apiaceae
furanocoumarins
Heracleum rawianum
sphondin
Fatemeh
Mahmoudi Kordi
fmahmoodi2@yahoo.com
1
Department of Biology, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
AUTHOR
Hassan
Valizadeh
hvalizadeh2@yahoo.com
2
Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University
LEAD_AUTHOR
Zahra
Hosseinzadeh
zhusenzade@yahoo.com
3
Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
AUTHOR
Mir Babak
Bahadori
mbahadori@yahoo.com
4
Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University
AUTHOR
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ORIGINAL_ARTICLE
The preparation of quinoxaline and 2,3-dihydropyrazine derivatives using selectfluor as an efficient and reusable catalyst
Selectfluor [1-(chloro methyl) -4-flouro -1,4-di azonia bicyclo[2,2,2] octane bis (tetraflouro-borate)] catalyzed the preparation of quinoxaline and 2,3-dihydo pyrazine derivatives through one -pot condensation of 1,2-di amines with 1,2-di carbonyls in solvent and under solvent- free conditions. This catalyst is commercially available, inexpensive, reusable, stable to air and moisture, and relatively non-toxic. Furthermore, very short reaction times, high yields of products, mild reaction conditions, absence of solvent, and easy work-up are other considerable advantages of these procedures. Also, a resonable mechanism has been proposed for the current reaction. The chemical structure and purity of the products were characterized by 1H NMR and IR spectroscopy.
https://icc.journals.pnu.ac.ir/article_875_f641796d2487c8db80828f4b3cfce08c.pdf
2015-01-01
6
15
Quinoxaline
2,3-dihydropyrazine
selectfluor
1,2-diamine
1,2-dicarbonyl
Seyedeh Fatemeh
Hojati
hojatee@yahoo.com
1
Hakim Sabzevari University
LEAD_AUTHOR
Zahra
Nematdoust
zahranematdoust@yahoo.com
2
hakim sabzevari university
AUTHOR
Toktam
Zeinali
t_zeinali@yahoo.com
3
hakim sabzevari university
AUTHOR
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36
ORIGINAL_ARTICLE
Application of N-4,4'-azodianiline(ferrocenyl Schiff base) for electrocatalytic determination of atenolol on modified carbon paste electrode
A carbon-paste electrode (CPE) chemically modified with the N-4,4'-azodianiline(ferrocenyl Schiff base) complex and multi wall carbon nanotubes (ADAFCNTE) was used as a highly sensitive electrochemical sensor for determination of trace amounts of atenolol. The oxidation peak potentials in cyclic voltammogram of ADAFCNTE occurred around 550 mV vs Ag/AgCl (at pH 6.0) while this peak potential at the carbon paste electrode appeared around 800 mV at the same scan rate of 10 mV s−1. The kinetic parameters such as electron transfer coefficient, α, and rate constant for chemical reaction between atenolol and redox sites in modified electrode were 0.41 and 2.8×102 cm3 mol-1 s-1, respectively. The catalytic peak current was linearly dependent on atenolol concentration in the range of 0.1-57.0 µmol L-1 with a detection limit of 0.08 µmol L-1. Finally, the sensor was examined as a selective, simple and precise new electrochemical sensor for the determination of atenolol in urine samples, with satisfactory results.
https://icc.journals.pnu.ac.ir/article_901_0cc78d05fecb120ea0e1130b37a2bf0b.pdf
2015-01-01
16
25
Atenolol
N-4
4'-azodianiline ferrocene
multi wall carbon nanotubes
electrocatalytic determination
Masoumeh
Taei
m.taei@ch.iut.ac.ir
1
Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran
LEAD_AUTHOR
Foroozan
Hasanpour
hasanpoura@yahoo.com
2
Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran
AUTHOR
Marjan
Shavakhi
shavakhim@yahoo.com
3
1Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran
AUTHOR
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26
ORIGINAL_ARTICLE
Zinc oxide nano-crystals assisted for carbon dioxide gas sensing; prepared by solvothermal and sonochemical methods
ZnO nanostructures of different methods and sizes were grown in a controlled manner using a simple hydrothermal and sonochemical technique. Controlling the content of concentration and temperature of the reaction mixture, spherical nanoparticles ZnO structures could be synthesized at temperatures 100-150 °C with excellent reproducibility in solvothermal and at different power and time in sonochemical methods. These ZnO nanostructures have been tested for CO2 gas monitoring by depositing them as thick films on an inter-digitated alumina substrate and evaluating the surface resistance of the deposited layer as a function of operating temperature and CO2 concentrations. The gas sensitivity tests have demonstrated that the ZnO nanostructures, spherical morphology, exhibit high sensitivity to CO2 proving their applicability in gas sensors. The role of the nanostructure on the sensing properties of ZnO is also discussed.
https://icc.journals.pnu.ac.ir/article_907_a12185a0600adbe414cb89fb57874081.pdf
2015-01-01
26
40
ZnO
metal oxides
CO2 gas sensor
sonochemistry
Mahdieh
Ghobadifard
mahdiehghobadifard@yahoo.com
1
Department Of Chemistry, Faculty of Science, Lorestan University, Khorramabad, Iran, P. O. Box=68135-465
LEAD_AUTHOR
Qasem
Maleki
malekiqasem@yahoo.com
2
Lorestan Univesity
AUTHOR
Mostafa
Khelghati
mostafakhelghati@gmail.com
3
Lorestan University
AUTHOR
Ehsan
Zamani
e.zamani67@gmail.com
4
Lorestan University
AUTHOR
Saeid
Farhadi
sfarhadi@yahoo.com
5
LU
AUTHOR
Alireza
Aslani
a.aslani110@yahoo.com
6
LU
AUTHOR
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ORIGINAL_ARTICLE
The effect of time and temperature on the growth and morphology of cupper oxide nanostructures
Cupper Oxide structures with a variety of novel morphologies are synthesized using cupper foil as substrate via a solution route. The structure, morphology and phase of the as-synthesized nanostructures are analyzed by various techniques. SEM images show gradual development of hierarchical structures of copper oxide with different morphology. In order to study the effect of reaction time and temperature on the morphology of the CuO samples, experiments carried out at temperatures 0 °C and 25 °C for 10 min up to 12h. Results showed that the prepared samples exhibited some novel morphology such as nanorods, nanosheets, microflowers, Cubic shaped structures and Tulip flower-shaped structures.
https://icc.journals.pnu.ac.ir/article_908_2d6562f6a3018ada0a12a6655b9d28b2.pdf
2015-01-01
41
47
Nanostructures
copper oxide
morphology
Mohamad Mohsen
Momeni
mm.momeni@cc.iut.ac.ir
1
Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
LEAD_AUTHOR
Mohadesah
Hakimiyan
hakimiyan_12@yahoo.com
2
Department of Physics, Payame Noor University, P. O. Box 119395-3697, Tehran, Iran
AUTHOR
Ali
Kazempoor
kazempour@pnu.ac.ir
3
Department of Physics, Payame Noor University, P. O. Box 119395-3697, Tehran, Iran
AUTHOR
Mahboubeh
Mirhosseini
m.mirhossaini@gmail.com
4
Department of Biology, Payame Noor University, P. O. Box 119395-3697, Tehran, Iran
AUTHOR
Zohre
Nazari
z.nazari001@gmail.com
5
Department of Physics, Payame Noor University, P. O. Box 119395-3697, Tehran, Iran
AUTHOR
Seyed Mostafa
Mirhoseini
mostafa.mirhoseini.sarejam@gmail.com
6
Department of Physics, Payame Noor University, P. O. Box 119395-3697, Tehran, Iran
AUTHOR
Hadi
Kargar
hadi_kargar@yahoo.com
7
Department of Chemistry, Payame Noor University,P. O. Box 119395-3697, Tehran, Iran
AUTHOR
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23
ORIGINAL_ARTICLE
Extraction and preconcentration of Pb(II) from water and soil samples using modified activated carbon
In this work, a new extractant was prepared by immobilizing ligand 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol, (5-Br-PADAP), on the activated carbon and applied to extraction of Pb(II) prior to determination by flame atomic absorption spectrometry. It was confirmed by FT- IR analysis. The metal ion was retained on the 0.05 g of the sorbent in the pH range 6-8, and then eluted with 5 mL of 0.5 mol L-1 nitric acid. Seven replicate determinations of a 1.0 µg mL-1 of lead solution in the final solution gave relative standard deviation of 3.3%. The maximum equilibrium capacity of the new sorbent from Langmuir model was 18.2 mg g-1. The linearity was maintained in the concentration range of 0.1-10.0 ng mL-1 for the concentrated solution. The limit of detection based on three times the standard deviation of the blank ( 3σbl/m), was found to be 0.83 ng mL-1 in original solution. Common coexisting ions did not interfere with the separation and determination of lead. The prepared sorbent was applied to the preconcentration of Pb(II) in water and soil samples with satisfactory results.
https://icc.journals.pnu.ac.ir/article_909_d055d54ad9150705f2c53e7d06a16ce0.pdf
2015-01-01
48
56
lead
5-Br-PADAP
modified carbon active
Fatemeh
Sabermahani
fatemehsaber2003@yahoo.com
1
Payeme Noor University of Kerman
LEAD_AUTHOR
Nosrat
Madadi Mahani
nmmadady@gmail.com
2
Payame Noor University of Kerman
AUTHOR
[1] N. Chiron, R. Guilet, E. Deydier, Water Res., 2003, 37, 3079-3086.
1
[2] M. Zabihi, A. Ahmadpour, A. Haghighi Asl, J. Hazard.Mater., 2009, 167, 230-236.
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[3] T.K. Naiya, A.K. Bhattacharya, S.K. Das, J. Colloid Interf. Sci., 2009, 333, 14-26.
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[6] E.L. Silva, P.S. Roldan, J. Hazard. Mater., 2009, 161, 142-147.
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[8] S. Tokalioglu, V. Yilmaz, S. Kartal, A. Delibas, C. Soykan, J. Hazard. Mater., 2009, 169, 593-598.
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23
ORIGINAL_ARTICLE
A novel synthesis of diastereomerically pure spiro- oxindolopyrrolizidines and oxindolopyrrolidines via cycloaddition reactions of azomethine ylides
An efficient one-pot three-component procedure for the synthesis of new chiral spiro oxindolopyrrolidines/pyrrolizidines with highly regio- and diastereo-enantio, selective from 1,3-dipolar cycloaddition of azomethine ylides and chiral menthol-drived trans-cinnamic are described. The mechanism of the reaction is discussed on basis of the assignment of the absolute configuration of one of the cycloaddition products, which obtained by single crystal X-ray analysis. The process occurs at reflux temperature in ethanol as green solvent and in the absence of any bidentate chelating Lewis acids. Functionalized pyrrolidines and pyrrolizidines with spirooxindole ring systems are the central skeletons for numerous alkaloids and pharmacologically important compounds.1 Gelesmine, pseudotabersonine, formosanine, isoformosanine, morroniside and mitraphylline are some of the alkaloids containing spirooxindole ring systems.
https://icc.journals.pnu.ac.ir/article_910_16245c34df00d4dfd7976a025bc37298.pdf
2015-01-01
57
61
Chiral spiro oxindolopyrrolidines
pyrrolizidines
azomethine ylides
chiral menthol-drived trans-cinnamic
isatin
sarcosine
Mohammad Javad
Taghizadeh
mohammadjavadtaghizadeh31@yahoo.com
1
Department of Chemistry, Imam Hossein University, PB BOX 995-16765 Tehran, Iran
LEAD_AUTHOR
Khosrow
Jadidi
2
Department of Chemistry, Shahid Beheshti University, PB BOX 1983963113 Tehran, Iran
AUTHOR
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10
ORIGINAL_ARTICLE
One-pot multicomponent reaction for the synthesis of 2-amino-4-chromenes promoted by 1-methyl imidazoliumiodide [mim]Cl ionic- liquid catalyst under solvent-free conditions
A simple, clean, and environmentally benign three-component process for the synthesis of 2-amino-4Hchromenes using [mim]Cl, as an efficient catalyst under solvent-free conditions are described. A wide range of aromatic aldehydes easily undergoes condensations with 1-naphthol and malononitrile under solvent-free conditions to afford the desired products of good purity in excellent yields. Taking into account environmental and economical considerations, the protocol presented here has the merits of environmentally benign, simple operation, convenient work-up and good yields. Furthermore, the catalyst can be easily recovered and reused for at least five cycles without losing its activities.A simple, clean, and environmentally benign three-component process for the synthesis of 2-amino-4Hchromenes using [mim]Cl, as an efficient catalyst under solvent-free conditions are described. A wide range of aromatic aldehydes easily undergoes condensations with 1-naphthol and malononitrile under solvent-free conditions to afford the desired products of good purity in excellent yields. Taking into account environmental and economical considerations, the protocol presented here has the merits of environmentally benign, simple operation, convenient work-up and good yields. Furthermore, the catalyst can be easily recovered and reused for at least five cycles without losing its activities.
https://icc.journals.pnu.ac.ir/article_919_87080e341b7979b628e08eeab4222c79.pdf
2015-01-01
62
71
Chromene
multicomponent reactions
1-methyl imidazoliumiodide [mim]Cl
solvent-free conditions
Mohammad Reza
Poor Heravi
mrheravi@yahoo.com
1
Department of Chemistry, Payame Noor University, Abhar, Iran
LEAD_AUTHOR
Mohammad
Amirloo
mr.amirloo@yahoo.com
2
Department of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, Iran
AUTHOR
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