Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.120131001Synthesis and characterization of termini azobenzene dendrimer16457ENOmidLouieDepartment of Chemistry, Payame Noor University, PO Box 19395-4697, Tehran, IranAbdoulhossienMassoudichemistry departmentAzarAgahchem department.Journal Article20130925Some organic molecules can be isomerized upon photoirradiation and when accompanied by a change in the visible absorption spectrum, it is called photochromism. Azobenzenes are important part of molecular machines and nanotechnology, Which are This phenomenon is called photoisomerization Azobenzene (azo) chromophores , and have been incorporated into a wide variety of materials and molecular architectures, including polymers, dendrimers, and molecular glasses. We synthesized and characterized the AB2 type polyamidoamine (PAMAM) dendrimers by single active site. PAMAM diazobenzene dendrimer was synthesized and characterized by FTIR and NMR (1H, 13C) and CHN-O Elementary analysis. The simple method can be used for the synthesis of Azobenzene derivative PAMAM dendrimer and other similar compounds.Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.120131001Hantzsch reaction using [Mesi]Cl as a new, efficient and BAIL catalyst724458ENSamiSajjadifarDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, Iran0000-0001-8661-1264HamidSaeidianDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, IranSayehZareDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, IranHojatVeisiDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, IranSobahnRezayatiDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, IranJournal Article20130906In this work, the efficiency, generality and applicability of new Bronsted acidic ionic liquid (BAIL) 1-methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium chloride {[Msei]Cl} as heterogeneous and green catalyst for organic transformations are studied. Herein, the following one-pot multi-component reactions in the presence of [Msei]Cl are investigated: (i) the synthesis of quinoxaline derivatives from the reaction of phenylenediamines and 1,2-diketones in EtOH under mild conditions (room temper-ature), (ii) the preparation of 1,4-dihydropyridines from one-pot multi component condensation of 1,3-dicarbonyl compounds, NH4OAcand aldehydes under solvent-free conditions at moderate temperature (90 °C). High yields, relatively short reaction times, efficiency, generality, clean process, simple methodology, low cost, easy work-up, ease of preparation and regeneration of the catalyst and green conditions (in the synthesis of the quinoxaline derivatives) are advantages of the application of [Mesi]Cl as catalyst in the above organic reactions.Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.120131001Essential oil composition of Achillea millefolium growing in Darrehshahr township2534453ENJavadZeinivandChemistry Teacher of Education, Darrehshahr, Ilam, Iran.NoorkhodaYousefzadehChemistry Teacher of Education, Darrehshahr, Ilam, Iran.Journal Article20130930Achillea millefolium belong to the asteraceae family and from genus achillea. In this study essential oils were extracted from all aerial parts via hydro distillation (HD) method by clevenger set . By using of gas chromatography/mass spectrometry ( GC-MS) technique the chemicals component essential oil were identified. About 41 components with were identified which encompassed 97.66 percent of the whole essential oil. The essential oil yields as a result of hydro distillation 0.56 percent (weight/weight) was obtained (it has been based on dried materials). In essential oils Achillea millefolium dihydrocarveol (34.97%), umbelulone (16.65%), 1,8 cineole (14.94%), bornyl acetate (6.08%), chrysanthenyle acetate cis (5.24%), camphene (4.21%), para-cymene (3.29%) and α-pinene (3.24%) were the major identified compounds. The purpose of this study was to identify the constituents of essential oils extracted from plants and also to determine the percentage of each compound in the essential oil of Achillea millefolium used as drug.Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.120131001Ni2+ supported on hydroxyapatite-core@shell γ-Fe2O3 nanoparticles as new and green catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones under solvent-free condition3542454ENEshaghRezaee NezhadDepartment of Chemistry, Payame Noor University, P.O. BOX 19395-4697, Tehran, IranZahraAbbasiDepartment of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, IranMojtabaRahimi MoghaddamDepartment of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, IranMohammad AliAttaeiDepartment of Chemistry, Payame Noor University, PB BOX 19395-4697 Tehran, IranJournal Article20131007<span style="font-family: Times New Roman;"><span style="font-size: small;">The aim of this research is to study </span><span style="font-size: small;">Ni</span><sup><span style="font-size: x-small;">2+</span></sup><span style="font-size: small;"> supported on hydroxyapatite-core-shell magnetic γ-Fe</span><sub><span style="font-size: x-small;">2</span></sub><span style="font-size: small;">O</span><sub><span style="font-size: x-small;">3</span></sub><span style="font-size: small;"> nanoparticles (γ-Fe</span><sub><span style="font-size: x-small;">2</span></sub><span style="font-size: small;">O</span><sub><span style="font-size: x-small;">3</span></sub><span style="font-size: small;">@HAp-Ni</span><sup><span style="font-size: x-small;">2+</span></sup><span style="font-size: small;">) </span><span style="font-size: small;">as a green and recyclable catalyst for the Biginelli reaction under solvent-free conditions. One-pot multi-component condensation of 1,3-dicarbonyl compounds, urea and aldehydes at 80 </span><sup><span style="font-size: x-small;">o</span></sup><span style="font-size: small;">C affords the corresponding compounds in high yields and in short reaction times using </span><span style="font-size: small;">γ-Fe</span><sub><span style="font-size: x-small;">2</span></sub><span style="font-size: small;">O</span><sub><span style="font-size: x-small;">3</span></sub><span style="font-size: small;">@HAp-Ni</span><sup><span style="font-size: x-small;">2+</span></sup><span style="font-size: small;">. The catalyst can be readily isolated using an external magnet and no obvious loss of activity was observed when the catalyst was reused in seven consecutive runs. The mean size and the surface morphology of the nanoparticles were characterized by transmission electron microscopy, scanning electron microscope, vibrating sample magnetometry, X-ray powder diffraction and Fourier transform infrared techniques. </span></span>Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.120131001A mild and efficient procedure for the synthesis of ethers from various alkyl halides4350455ENMosstafaKazemiaBashgah Pajouheshgaran Javan, Islamic Azad University of Ilam, P.O. Box 447, Ilam, IranZahraNooriDepartment of Chemistry, Tehran University, P.O. Box 4111, Tehran, IranHomaKohzadiBashgah Pajouheshgaran Javan, Islamic Azad University of Ilam, P.O. Box 447, Ilam, IranMohsenSayadiaBashgah Pajouheshgaran Javan, Islamic Azad University of Ilam, P.O. Box 447, Ilam, IranAminKazemiaBashgah Pajouheshgaran Javan, Islamic Azad University of Ilam, P.O. Box 447, Ilam, IranJournal Article20131009<span style="font-family: Times New Roman;"><span style="font-size: small;"> A simple, mild and practical procedure has been developed for the synthesis of symmetrical and unsymmetrical ethers by using DMSO, TBAI in the presence of K</span><sub><span style="font-size: x-small;">2</span></sub><span style="font-size: small;">CO</span><sub><span style="font-size: x-small;">3</span></sub><span style="font-size: small;">. We extended the utility of Potassium carbonate as an efficient base for the preparation of ethers. A wide range of alkyl aryl and dialkyl ethers are synthesized from treatment of aliphatic alcohols and phenols with various alkyl halides in the presence of efficient base Potassium carbonate. Secondary alkyl halides were easily converted to corresponding ethers in relatively good yields . This is a mild, simple and practical procedure for the preparation of ethers in high yields and suitable times under mild condition</span><span style="font-size: small;">.</span></span>Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.1201310011,3-Dibromo-5,5-dimethylhydantoin: a versatile catalyst for synthesis of 3,3-bis(indolyl)oxindoles5158465ENSeyyedeh FatemehHojatiaDepartment of Chemistry, School of Science, Hakim Sabzevari University, Sabzevar, 9617976487, IranKobraNikoofarDepartment of Chemistry, School of Science, Alzahra University, Vanak, Tehran, 1993891176, IranZahraEtemadifaraDepartment of Chemistry, School of Science, Hakim Sabzevari University, Sabzevar, 9617976487, IranJournal Article20131002A condensation of various isatins with indole derivatives has been carried out in the presence of 1,3-dibromo-5,5-dimethylhydantoin (DBDMH) as catalyst at 50 °C in ethanol in order to form 3,3-bis(indolyl) oxindoles. The products were obtained within 20-90 min by 70-96% yields. The efficacy of the procedure has been confirmed by catalyzing the condensation reaction of pyrrole which was used as another sort of heterocycle with indole to obtain its corresponding 3,3-bis(2-pyrrolyl)oxinole. A plausible mechanism of the condensation based on DBDMH activating role has also been proposed. DBDMH is an effective, commercially available, insensitive to moisture and easily handling catalyst. Simple procedure, easy work-up, mild reaction conditions, high yields and short reaction times are the highlighted points of reported method.Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.120131001Theoretical models for determination of weight percent of PHCS-g-PLLA co polymer using experimental data5968480ENOmidLouieDepartment of Chemistry, Payame Noor University, PO Box 19395-4697, Tehran, IranAbdolhosseinMassoudiDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, IranSoodabehRamezaniDepartment of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, IranJournal Article20131011The amphiphilic graft copolymer using chitosan (CS) as hydrophilic segment and poly (L-lactic acid) (PLLA) as hydrophobic segment, was prepared through a protection-graft-de protection route. Chitosan is a polysaccharide comprising of copolymers of glucosamine and N-acetyl glucosamine. Chitosan is the deacetylated derivative of chitin, which is one of the most abundant natural polysaccharides containing nitrogen .A simple and convenient procedure for chemo selectively protecting the amino groups of CS was developed to provide N-phthaloyl-chitosan (PHCS) that is indispensable as a soluble N-protected precursor for further controlled modification reaction of CS. The Weight percent PHCS-g-PLLA copolymer determined by the theoretical Models based on experimental datas.It was low error regression in new models.Iranian chemical communication2423-49581Issue 1, pp. 1-82, Serial No.120131001Application of dimeric and monomeric ortho-palladated complexes as an efficient catalysts for Heck cross-coupling reaction6982489ENAliNaghipourDepartment of Chemistry, Faculty of science, Ilam University, Ilam, 69315-516, IranMohsenSayadiDepartment of Chemistry, Faculty of science, Ilam University, Ilam, 69315-516, IranMojdehHashemiDepartment of Chemistry, Faculty of science, Ilam University, Ilam, 69315-516, IranMosstafaKazemiBashgah Pajouheshgaran Javan, Islamic Azad University of Ilam, P.O. Box 447, Ilam, IranJournal Article20131024The catalytic acvtivity of dimeric and monomeric ortho-palladated complexes [Pd{C6H2(CH2NH2-(OMe)2,3,4}(µ-Cl)]2)2) and [Pd{C6H2(CH2NH2-(OMe)2,3,4}Cl(PPh3)](3), was investigated in Heck cross-coupling reaction. These complexes are more active and efficient catalysts for Heck cross-coupling reaction. The palladium complexes 2 and 3 is employed in the Heck cross-coupling reaction between styrene and acrylate with several aryl halides. High yields of corresponding C–C products, low catalyst loadings, mild reaction conditions and short reaction times are important features of these homogeneous reactions. The cross-coupled products were produced in high yields using catalytic amounts of [Pd{C6H2(CH2NH2-(OMe)2,3,4}(µ-Cl)]2 or [Pd{C6H2(CH2NH2-(OMe)2,3,4}Cl(PPh3)] as a thermally stable and oxygen insensitive complexes in NMP at 130 ºC.