Volume 8 (2020)
Volume 7 (2019)
Volume 6 (2018)
Volume 5 (2017)
Volume 4 (2016)
Volume 3 (2015)
Volume 2 (2014)
Number of Articles: 235
Melamine trisulfonic acid as a highly efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under solvent-free conditions
Volume 2, Issue 1, pp. 1-81, Serial No. 2 , January 2014, , Pages 1-17
Abstract
Melamine trisulfonic acid (MTSA) is utilized as a highly efficient catalyst for the solvent-free condensation reaction of 2-naphthol (2 eq.) with arylaldehydes (1 eq.) under conventional thermal as well as microwave conditions to give the d Read MoreFurocoumarins from Heracleum rawianum in Iran
Volume 3, Issue 1, pp. 1-71, Serial No.6 , January 2015, , Pages 1-5
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 ... Read MoreThe effects of F2 adsorption on NMR parameters of undoped and 3C-doped (8, 0) zigzag BPNTs
Volume 4, Issue 1, pp. 1-132, Serial No. 10 , January 2016, , Pages 1-12
Abstract
In this research, we studied the structure, properties and NMR parameters of interaction F2 gas with pristine and 3C-doped (8, 0) zigzag models of boron phosphide nanotubes (BPNTs). in order to reach these aims, we considered four different configurations for adsorption of F2gas on the outer and inner ... Read MoreComparison of chelating ability of dipeptide (histidine-β-alanine) and (tetrakis(4-sulfonatophenyl)porphyrin) (TPPS4) for in vitro removal of toxic metals
Volume 6, Issue 1, pp. 1-108, Serial No. 18 , January 2018, , Pages 1-7
Abstract
Peptides are one of the best candidates for drug development due to their high specificity and low toxicity and porphyrins are significant macromolecules in biological systems with important roles. In this works ynthesis of dipeptide (histidine-β-alanine) was done by solid-phase peptide synthesis ... Read MoreMultivariate curve resolution-alternating least squares applied to kinetic spectrophotometric data for the determination of mixtures of aliphatic amines
Volume 7, Issue 1, pp. 1-89, Serial No. 22 , January 2019, , Pages 1-14
Abstract
Kinetic spectrophotometric second order data based on the reaction of 1,2-naphthoquinone-4-sulphonate (NQS) coupled with multivariate curve resolution-alternating least squares (MCR-ALS) has been proposed for simultaneous determination of ethylamine, propylamine and butylamine. Using second-order advantage, ... Read MoreElectrosynthesis and optical modeling of ZnO nanostructures
Volume 3, Issue 2, pp. 72-147, Serial No. 7 , April 2015, , Pages 72-77
Abstract
Optical modeling was applied for obtaining absorbance spectra and band gap values for different morphology of ZnO semiconductor. In optical modeling, the relative permittivity scalars of zinc oxide coral like nanorods were calculated using the Bruggeman homogenization formalism. ZnO nano rods (ZONRs) ... Read MoreTheoretical evaluation of medicinal properties for some of N-aryl-3-hydroxypyridine-4-ones derivative compounds
Volume 2, Issue 2, pp. 82-163, Serial No. 3 , April 2014, , Pages 82-92
Abstract
Today, the bidentate ligands 3-hydroxypyridin-4-ones (HPOs) as orally active iron chelating agents have been demonstrated to possess potential for treatment of some human diseases such as iron-overload in thalassaemic patients and malaria. In this research, a series of HPOs with different substitutes ... Read MoreElectrocatalytic multicomponent assembling of aldehydes, dimedone and 1-naphthylamine for synthesis of novel tetrahydrobenzo[c]acridin-8(7H)-one derivatives
Volume 7, Issue 2, pp. 90-159, Serial No. 23 , April 2019, , Pages 90-98
Abstract
An efficient and convenient synthesis of novel tetrahydrobenzo[c]acridin-8(7H)-one derivatives is described using the electrogenerated anion of acetonitriles as the base in the presence of tetrabutylammonium fluoride as an effective supporting electrolyte in a one-pot, three-component condensation of ... Read MoreUltrasound assisted oxidation of various alcohols to corresponding aldehydes by using Al2O3 as catalyst
Volume 6, Issue 2, pp. 109-217, Serial No. 19 , April 2018, , Pages 109-113
Abstract
A convenient approach for oxidation of structurally diverse alcohols has been developed using KMnO4 as oxidant agent in the presence of a catalytic amount of Al2O3 in aqueous acetonitrile. In this method various alcohols generally afforded the corresponding carbonyl compounds directly in good to high ... Read MoreN,N,N,N-Tetramethylguanidinium acetate as an efficient and reusable ionic liquid catalyst for the one-pot synthesis of dihydropyrrol-2-ones
Volume 5, Issue 2, pp. 121-236, Serial No. 15 , April 2017, , Pages 121-128
Abstract
An extremely facile and efficient procedure which has been developed for the synthesis of dihydropyrrol-2-ones. One-pot four-component reaction of amines, dialkyl acetylenedicarboxylates and formaldehyde in the presence of N,N,N,N-tetramethylguanidinium acetate [TMG][Ac] in methanol at ambient temperature ... Read MoreSynthesis, spectroscopic investigation and coductometry of a new hexadentate symmetric Schiff base ligand containing N2O2S2 donor atoms and related complexes with Cd(II), Zn(II), Co(II) and Mn (II) metal ions
Volume 4, Issue 2, pp. 133-235, Serial No. 11 , April 2016, , Pages 133-141
Abstract
In this paper, we report the synthesis and characterization of a new symmetric macroacyclic Schiff base ligand (H2L) and related complexes with different metals. (H2L) was synthesized by the one pot condensation reaction of 2-[2-(2-formyl phenoxy)ethoxy]benzaldehyde and 2-aminobenzenethiol in a 1:2 molar ... Read MoreN1,N1,N2,N2-Tetramethyl-N1,N2-bis(sulfo)ethane-1,2-diaminium chloride as a highly efficient catalyst for synthesis of some nitrogen- and oxygen-containing heterocyclic compounds
Volume 7, Issue 3, pp. 160-229, Serial No. 24 , July 2019, , Pages 160-173
Abstract
In this research, a Brønsted acidic ionic liquid namely N1,N1,N2,N2-tetramethyl-N1,N2-bis(sulfo)ethane-1,2-diaminium chloride {[TMBSED][Cl]2} was employed as a highly efficient catalyst for the solvent-free production of some nitrogen- and oxygen-containing heterocyclic compounds including: (i) ... Read MoreOne-pot and one-step novel N-methylation of 2,6-diaminopyridine
Volume 2, Issue 3, pp. 162-231, Serial No. 4 , July 2014, , Pages 162-167
Abstract
2,6-diaminopyridine is extensively used as a pharmaceutical intermediate and a hair dye coupler as oxidation formulations. It is soluble in protic solvents. Primary and secondary amines are N-methylated by various methods such as direct alkylation of amines with Hofmann mechanism, but in many of these ... Read MoreMicrowave-assisted solvent-free synthesis and antibacterial evaluation of 1-azabicyclo[3.1.0]hexane-3-enes
Volume 6, Issue 3, pp. 218-324, Serial No. 20 , July 2018, , Pages 218-227
Abstract
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 ... Read MoreFriedel-Crafts alkylation of indoles with epoxides using PW12-APTES@SBA-15
Volume 7, Issue 4. pp. 230-306, Serial No. 25 , October 2019, , Pages 230-238
Abstract
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, ... Read MoreIsolation and characterization of curcumin from powdered rhizomes of turmeric plant marketed in Maragheh city of Iran with soxhlet technique
Volume 2, Issue 4, pp. 236-325, Serial No. 5 , October 2014, , Pages 236-243
Abstract
Turmeric (Curcuma longa L.) is extensively used as a spice, food preservative and colouring material. It has been used in traditional medicine for various diseases. Curcumin, the main yellow bioactive component of turmeric has been shown to have a wide spectrum of biological actions. Heretofore, it has ... Read MoreSynthesis and characterization of Schiff-base polymer derived from 2,5-dichloroaniline and 2-hydroxybenzaldehyde
Volume 5, Issue 3, pp. 237-363, Serial No. 16 , July 2017, , Pages 237-241
Abstract
Schiff base sal-2,5-Clan = 2-(2,5-dichlorobenzylideneamino)phenol used as a new precursor for preparation of poly-2-(2,5-dichlorobenzylideneamino)phenol (PDCBAP). In an aqueous alkaline medium, NaOCl oxidant is capable of oxidative poly-condensation reaction (OP). Both sal-2,5-Clan and PDCBAP were characterized ... Read MoreThe anti cancer effects of Stachys Lavandulifolia extract
Volume 3, Issue 4, pp. 283-387, Serial No. 9 , October 2015, , Pages 283-290
Abstract
Stachys is one of the largest genera in the flowering plant family. It is in the subfamily Lamioideae (Labiatae), spreading and growing in different parts of Iran. The purpose of this study was to investigate the chemical properties of Stachyslavandulifolia as well as the essence, ethanol and methanol ... Read MoreEssential oil composition of Cleome heratensis (Capparaceae) at different growing stages
Volume 5, Issue 4, pp. 364-493, Serial No. 17 , October 2017, , Pages 364-371
Abstract
In this study, the essential oil content in the aerial parts of Cleome heratensis which is growing in the east of Iran was investigated. The aerial parts of the plant were collected from the late August to October 2014, for a total of four harvests (S1-S4). Essential oils were isolated by hydro-distillation. ... Read MoreThe preparation of quinoxaline and 2,3-dihydropyrazine derivatives using selectfluor as an efficient and reusable catalyst
Volume 3, Issue 1, pp. 1-71, Serial No.6 , January 2015, , Pages 6-15
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 ... Read MorePreconcentration of acrylamide with dispersive liquid-liquid microextraction based on solidification of floating organic drop prior to determination by HPLC
Volume 6, Issue 1, pp. 1-108, Serial No. 18 , January 2018, , Pages 8-18
Abstract
A novel, rapid, simple and sensitive dispersive liquid-liquid microextraction method based on the solidification of floating organic drop (DLLME-SFO) combined with high performance liquid chromatography-ultra violet detection (HPLC-UV) was used to determine acrylamide in potato chips. The derivation ... Read MoreSolvent-free and one-pot Biginelli synthesis of 3,4-dihydropyrimidin-2(1H)-ones and 3,4-dihydropyrimidin-2(1H)-thiones using ionic liquid N,N-diethyl-N-sulfoethanammonium chloride {[Et3N–SO3H]Cl} as a green catalyst
Volume 4, Issue 1, pp. 1-132, Serial No. 10 , January 2016, , Pages 13-20
Abstract
In this work, the ionic liquid triethylamine-bonded sulfonic acid {[Et3N–SO3H]Cl}, N,N-diethyl-N-sulfoethanammonium chloride was used as a green acidic homogeneous catalyst to synthesis of 3,4-dihydropyrimidin-2(1H)-ones and 3,4-dihydropyrimidin-2(1H)-thiones as two categories of heterocycles, ... Read MorePerformance comparison of graphene and graphene oxide-supported palladium nanoparticles as a highly efficient catalyst in oxygen reduction
Volume 6, Issue 3, pp. 218-324, Serial No. 20 , July 2018, , Pages 15-28
Abstract
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 ... Read MoreOne-pot synthesis of highly regioselective β-azido alcohols catalyzed by Brønsted acidic ionic liquids
Volume 7, Issue 1, pp. 1-89, Serial No. 22 , January 2019, , Pages 15-28
Abstract
In this protocol, 3-(2-carboxybenzoyl)-1-methyl-1H-imidazol-3-ium chloride [Cbmim]Cl and sulfonic acid functionalized pyridinium chloride [pyridine-SO3H]Cl as a new, reusable, and green Brønsted acidic ionic liquid (BAIL) catalyst were synthesized and successfully used for the one-pot ring opening ... Read MoreSynthesis and characterization of derived imines from 4-imino-5,6,7,8-tetrahydro-1-benzothieno[2,3-d]pyrimidin-3(4H)-amine
Volume 2, Issue 1, pp. 1-81, Serial No. 2 , January 2014, , Pages 18-26