@article { author = {Mahmoudi Kordi, Fatemeh and Valizadeh, Hassan and Hosseinzadeh, Zahra and Bahadori, Mir Babak}, title = {Furocoumarins from Heracleum rawianum in Iran}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {1-5}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {Allobergapten,angelicin,apiaceae,furanocoumarins,Heracleum rawianum,sphondin}, url = {https://icc.journals.pnu.ac.ir/article_1143.html}, eprint = {https://icc.journals.pnu.ac.ir/article_1143_fa8d33dc5428c473458531e43335a2f1.pdf} } @article { author = {Hojati, Seyedeh Fatemeh and Nematdoust, Zahra and Zeinali, Toktam}, title = {The preparation of quinoxaline and 2,3-dihydropyrazine derivatives using selectfluor as an efficient and reusable catalyst}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {6-15}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {Quinoxaline,2,3-dihydropyrazine,selectfluor,1,2-diamine,1,2-dicarbonyl}, url = {https://icc.journals.pnu.ac.ir/article_875.html}, eprint = {https://icc.journals.pnu.ac.ir/article_875_f641796d2487c8db80828f4b3cfce08c.pdf} } @article { author = {Taei, Masoumeh and Hasanpour, Foroozan and Shavakhi, Marjan}, title = {Application of N-4,4'-azodianiline(ferrocenyl Schiff base) for electrocatalytic determination of atenolol on modified carbon paste electrode}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {16-25}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {Atenolol,N-4,4'-azodianiline ferrocene,multi wall carbon nanotubes,electrocatalytic determination}, url = {https://icc.journals.pnu.ac.ir/article_901.html}, eprint = {https://icc.journals.pnu.ac.ir/article_901_0cc78d05fecb120ea0e1130b37a2bf0b.pdf} } @article { author = {Ghobadifard, Mahdieh and Maleki, Qasem and Khelghati, Mostafa and Zamani, Ehsan and Farhadi, Saeid and Aslani, Alireza}, title = {Zinc oxide nano-crystals assisted for carbon dioxide gas sensing; prepared by solvothermal and sonochemical methods}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {26-40}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {ZnO,metal oxides,CO2 gas sensor,sonochemistry}, url = {https://icc.journals.pnu.ac.ir/article_907.html}, eprint = {https://icc.journals.pnu.ac.ir/article_907_a12185a0600adbe414cb89fb57874081.pdf} } @article { author = {Momeni, Mohamad Mohsen and Hakimiyan, Mohadesah and Kazempoor, Ali and Mirhosseini, Mahboubeh and Nazari, Zohre and Mirhoseini, Seyed Mostafa and Kargar, Hadi}, title = {The effect of time and temperature on the growth and morphology of cupper oxide nanostructures}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {41-47}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {Nanostructures,copper oxide,morphology}, url = {https://icc.journals.pnu.ac.ir/article_908.html}, eprint = {https://icc.journals.pnu.ac.ir/article_908_2d6562f6a3018ada0a12a6655b9d28b2.pdf} } @article { author = {Sabermahani, Fatemeh and Madadi Mahani, Nosrat}, title = {Extraction and preconcentration of Pb(II) from water and soil samples using modified activated carbon}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {48-56}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {lead,5-Br-PADAP,modified carbon active}, url = {https://icc.journals.pnu.ac.ir/article_909.html}, eprint = {https://icc.journals.pnu.ac.ir/article_909_d055d54ad9150705f2c53e7d06a16ce0.pdf} } @article { author = {Taghizadeh, Mohammad Javad and Jadidi, Khosrow}, title = {A novel synthesis of diastereomerically pure spiro- oxindolopyrrolizidines and oxindolopyrrolidines via cycloaddition reactions of azomethine ylides}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {57-61}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {Chiral spiro oxindolopyrrolidines,pyrrolizidines,azomethine ylides,chiral menthol-drived trans-cinnamic,isatin,sarcosine}, url = {https://icc.journals.pnu.ac.ir/article_910.html}, eprint = {https://icc.journals.pnu.ac.ir/article_910_16245c34df00d4dfd7976a025bc37298.pdf} } @article { author = {Poor Heravi, Mohammad Reza and Amirloo, Mohammad}, title = {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}, journal = {Iranian chemical communication}, volume = {3}, number = {Issue 1, pp. 1-71, Serial No.6}, pages = {62-71}, year = {2015}, publisher = {}, issn = {2423-4958}, eissn = {2345-4806}, doi = {}, abstract = {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.}, keywords = {Chromene,multicomponent reactions,1-methyl imidazoliumiodide [mim]Cl,solvent-free conditions}, url = {https://icc.journals.pnu.ac.ir/article_919.html}, eprint = {https://icc.journals.pnu.ac.ir/article_919_87080e341b7979b628e08eeab4222c79.pdf} }