eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
519
525
10.33945/SAMI/CHEMM.2019.5.1
83973
مقاله پژوهشی
Microwave Assisted Solvent-free Synthesis of 1-phenyl-1, 2-dihydro-3H-naphtho[1, 2-e][1, 3]oxazin-3-one Catalyzed by FeCl3
Saeid Taghavi Fardood
saeidt64@gmail.com
1
Ali Ramazani
aliramazani@gmail.com
2
Morteza Ayubi
morteza.ayubi@gmail.com
3
Farzaneh Moradnia
farzaneh2856@gmail.com
4
Shahin Abdpour
chemist_1364@yahoo.com
5
Reza Forootan
forootanreza23@gmail.com
6
Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran
Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran
Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran
Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran
Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran
Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran
Three-component coupling of 2-naphthol, aldehydes, and urea has been accomplished in the presence of FeCl3 under microwave irradiation and solvent-free conditions to afford the corresponding synthesis of 1-phenyl-1, 2-dihydro-3H-naphtho[1,2-e][1,3]oxazin-3-onederivatives in excellent yields. It is a promising catalyst for the microwave-assisted reaction providing high product yield in a short period.
https://www.chemmethod.com/article_83973_4e94e3bb9a79f710f4dadbcc2b899098.pdf
Iron (III) chloride
Catalyst
Solvent free
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
526
534
10.33945/SAMI/CHEMM.2019.5.2
85630
مقاله پژوهشی
Preparation and Crystal Structure Determination of Zinc (II) Bromide Complexes at the Presence of Various Ligands
Aliakbar Dehno Khalaji
alidkhalaji@yahoo.com
1
Ensieh Shahsavani
e.shahsavani@yahoo.com
2
Michal Dusek
dusek@fzu.cz
3
Monika Kucerakova
kucerakova@fzu.cz
4
Wolfgang Hornfeck
hornfeck@fzu.cz
5
Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran
Ph.D Educated, Department of Chemistry,Payamenoor University, Mashhad, Iran
Institute of Physic ASCR, v. v. i., Na Slovance 2, 182 21, Prague, Czech Republic
Institute of Physic ASCR, v. v. i., Na Slovance 2, 182 21, Prague, Czech Republic
Institute of Physic ASCR, v. v. i., Na Slovance 2, 182 21, Prague, Czech Republic
In this paper, we report the syntheses and crystal structuredetermination of three mononuclear and four-coordinated zinc(II) bromide complexes with chemical formula of [Zn(tsc)2]Br2 (1), Zn(PPh3)2Br2 (2) and Zn(Brcatsc)Br2 (3). The synthesized complexes are characterized by elemental analysis (CHN) and theircrystal structures are investigated by single crystal X-ray diffraction. In complex 1, the TSC coordinates to the zinc(II) ion as a bidentate ligand via N and S atoms. In complex 3, the thiosemicarbazone ligand Brcatsc coordinates to zinc(II) ion as a monodentate ligand via S atom. In these complexes, the zinc(II) ion coordinated in a distorted tetrahedral coordination geometry.
https://www.chemmethod.com/article_85630_7b3f5c21989f75f1e301fed7480811f8.pdf
Zinc(II)
Mononuclear
Distorted tetrahedral
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
535
542
10.33945/SAMI/CHEMM.2019.5.3
85631
مقاله پژوهشی
Metal Free Synthesis of Organosulfur Compounds Employing Eosin Y as Photoredox Catalyst
Fayaz Mangi
fayazmangi@yahoo.com
1
Fouzia Abdul Sattar
fouzia.asattar@buitms.edu.pk
2
Can Zhong Lu
czlu@fjirsm.ac.cn
3
Department of Chemistry, FABS, BUITEMS, Quetta, Pakistan
Department of Chemistry, FABS, BUITEMS, Quetta, Pakistan
State key laboratory of structural chemistry, FJIRSM, CAS, Beijing, PR China
The organosulfur compounds are an important class of compounds with extensive pharmaceutical and synthetic concern as well as a prominent role in the living system. The development of effective methods for the introduction of sulfur atom into the carbon framework remains an eternal challenge, as most of the accounted process needs tenacious conditions. Owing to its economical and eco-friendly nature, eosin Y has emerged as a promising alternate to the transition metal catalyst in numerous organic transformations comprising C-H functionalization. The current work aims at a direct, efficient and single step synthetic route for the construction of thioethers, through oxidative coupling of the reaction partners facilitated by eosin Y as an organo photoredox catalyst. The use of inexpensive and non-toxic dye, convenient reaction conditions, simple work-up procedure, and good to excellent yields are the advantages of this approach.
https://www.chemmethod.com/article_85631_30590b4d6e80344574f2822a62a5cb0c.pdf
Photoredox Catalyst
Visible light
Organic dye
Eosin Y
Organosulfur ccompound
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
543
561
10.33945/SAMI/CHEMM.2019.5.4
85632
مقاله پژوهشی
The AIM, RDG, NBO, Quantum and Structural Study of Adsorption of Phosgene Gas on the Surface of Pristine and Al, P Doped Ga12N12 Nano Cluster: A DFT Method
P. Hosseini
mrsameti@malayeru.ac.ir
1
Mahdi Rezaei Sameti
mrsameti@gmail.com
2
Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, 65174, Iran
Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, 65174, Iran
The main objective of this work is to study the sensivity of pristine, Al, P and Al & P doped Ga12N12 to adsorb phosgene (COCl2) molecule. The interaction of COCl2 from O, C and Cl sites on the surface of Ga12N12 is investigated by applying the density functional theory (DFT) at the cam-B3LYP/6-31G(d) level of theory. The geometrical and electrical structures, quantum descriptive, thermodynamic parameters, solvent effect, atom in molecule theory (AIM), natural bond orbital (NBO), and the reduced density gradient (RDG) are calculated at the above level of theory. The calculated results indicate that the adsorption of COCl2 on the surface of pristine and Al, P and Al & P doped Ga12N12 is exothermic, as well as Al-doped Ga12N12 is more favorable than P and Al & P doped. The recovery time results for adsorption of COCl2 from O site on the surface of Ga12N12, Al-Ga11N12, Ga12N11P and Al-Ga11N11P are 0.103, 4.69×10-7, 3.81×10-12 and 4.31×10-7 respectively. As a result, these nanoclusters can be used as sensor devices toward COCl2 molecule. The deformation energy results reveal that the structural change of Ga12N12 and COCl2 at all adsorption states are not significant. The AIM, RDG and NBO results demonstrate that the intermolecular interaction from O site of COCl2 on the surface of pristine, Al, P and Al & P doped Ga12N12 is stronger than C and Cl atoms sites of COCl2 as it is an electrostatic attractive type. The main objective of this work is to study the sensivity of pristine, Al, P and Al & P doped Ga12N12 to adsorb phosgene (COCl2) molecule. The interaction of COCl2 from O, C and Cl sites on the surface of Ga12N12 is investigated by applying the density functional theory (DFT) at the cam-B3LYP/6-31G(d) level of theory. The geometrical and electrical structures, quantum descriptive, thermodynamic parameters, solvent effect, atom in molecule theory (AIM), natural bond orbital (NBO), and the reduced density gradient (RDG) are calculated at the above level of theory. The calculated results indicate that the adsorption of COCl2 on the surface of pristine and Al, P and Al & P doped Ga12N12 is exothermic, as well as Al-doped Ga12N12 is more favorable than P and Al & P doped. The recovery time results for adsorption of COCl2 from O site on the surface of Ga12N12, Al-Ga11N12, Ga12N11P and Al-Ga11N11P are 0.103, 4.69×10-7, 3.81×10-12 and 4.31×10-7 respectively. As a result, these nanoclusters can be used as sensor devices toward COCl2 molecule.
https://www.chemmethod.com/article_85632_a77ab20409dabd596f9cb077d3eaadb3.pdf
COCl2
Ga12N12
Al
P and Al&P doped
DFT
NBO
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
562
570
10.33945/SAMI/CHEMM.2019.5.5
86002
مقاله پژوهشی
Dithiocarbamate Modified SPION-Chitosan Nanobiocomposite, a Promising Adsorbent for Bovine Serum Albumin (BSA)
Esmail Doustkhah
esmaildostkhah@gmail.com
1
Mohammad Heydarizadeh
2
Zahra Fathi
3
Hamed Mohtasham
4
Sadegh Rostamnia
srostamnia@gmail.com
5
Morteza Hasani
6
International Center for Materials Nanoarchitechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Organic and Nano Group (ONG), Department of Chemistry, Faculty of Science, University of Maragheh, PO Box 55181-83111, Maragheh, Iran
Department of Microbiology, Faculty of Science, University of Maragheh, PO Box 55181-83111, Maragheh, Iran
Organic and Nano Group (ONG), Department of Chemistry, Faculty of Science, University of Maragheh, PO Box 55181-83111, Maragheh, Iran
Organic and Nano Group (ONG), Department of Chemistry, Faculty of Science, University of Maragheh, PO Box 55181-83111, Maragheh, Iran
Organic and Nano Group (ONG), Department of Chemistry, Faculty of Science, University of Maragheh, PO Box 55181-83111, Maragheh, Iran
In the present paper, bovine serum albumin (BSA) was studied for extraction case from a buffer solution through a new version of modified magnetic chitosan nanocomposite. Post-modification of this magnetic chitosan led to conversion of amine groups to dithiocarbamate on the surface of chitosan which was wrapped to superparamagnetic iron oxide nanoparticles (SPION). Chitosan was converted to magnetic chitosan over co-precipitation of Fe2+ and Fe3+ under alkali conditions. Amines of chitosan were also converted to dithiocarbamate over the reaction of carbon disulfide. Study of the synthesized support in BSA extraction was achieved in further experiments.
https://www.chemmethod.com/article_86002_7bdd8074233646a0688a76b8f983d913.pdf
BSA
SPION
Chitosan
Protein extraction
Magnetic Chitosan
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
571
579
10.33945/SAMI/CHEMM.2019.5.6
86894
مقاله پژوهشی
Preparation and Characterization of ZnO Nanoparticles via Thermal Decomposition from Zinc(II) Schiff Base Complex as New Precursor
Aliakbar Dehno Khalaji
alidkhalaji@yahoo.com
1
Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran
In this paper,nano-sized of mononuclear tetrahedral zinc(II) complex with the general formula of Zn((pma-ba)2en)Br2.2H2O, (pma-ba)2en=N,N¢-bis{(paramethylamino)benzylidene}ethylenediamine, was synthesized by ultrasonic bath assisted from the reaction of ZnBr2 and Schiff base ligand (pma-ba)2en in molar ratio 1:1 in methanol solution. The zinc(II) Schiff base complex characterized by elemental analyses (CHN), Fourier transformed infra-red (FT-IR) spectroscopy, X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). Also, thermal stability of the complex was studied from room temperature to 780 °C under argon atmosphere. TGA shows three stages for decomposition of the zinc(II) complex. At the end of decomposition, the remainder part is ZnO. The preparation of ZnO at the end of thermal decomposition confirmed with XRD. The XRD pattern of complex has shown that the sharp crystalline peaks indicating the crystalline phase in complex. By Scherrer’s formula, the average size of the nano-sizes of the complex was calculated >200 nm, that confirmed by SEM image. In addition, ZnO nanoparticles were obtained by thermal decomposition of zinc(II) Schiff base complex at 550 °C for 3 h. XRD result that the good crystallinity for zinc(II) oxide with no impurity observed in the ZnO product. The average size of the nanoparticles of the ZnO was calculated <50 nm.
https://www.chemmethod.com/article_86894_2107800f1fde34f397bc1f0dd26e4cc8.pdf
Nano-sized
Zinc(II) complex
Schiff base ligand
Thermal decomposition
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
580
590
10.33945/SAMI/CHEMM.2019.5.7
86897
مقاله پژوهشی
Preconcentration of Silver Using Solidification of Floating Organic Drop and Its Determination by Flame Atomic Absorption Spectroscopy
Hadi Noorizadeh
hadinoorizadeh@yahoo.com
1
Shahryar Abbasi
abosina2000@yahoo.com
2
PhD student in Chemistry, Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran
Professor in Chemistry, Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran
A simple, rapid and dispersive liquid–liquid microextraction-solidification of floating organic drop procedure was combined with flame atomic absorption spectrometry and established for the determination of trace amounts of silver. 5-(4-dimethylamino-benzylidine) (Rhodenylene) ligand and 1-dodecanol were used as complexing agents and extracting solvents, respectively. The optimum extraction efficiency of silver was obtained after optimization of the pH, concentration of ligand, the nature and amount of solvent extraction, salt increase effect, extraction time, extraction temperature and stirring rate. The effects of various ions on the recovery of Ag were also investigated. The limit of detection defined as 3SB/m was 1.55 ngL−1. The sensitivity for three eight measurements of 10 and 100 μgL−1 of silver was 1.55 ngL−1. The relative standard deviation (RSD) for the measurements of 0.20 μgL−1 of silver was ±2.3%. Water well, mineral water and urban drinking water samples were analyzed for Ag amount. The microextraction method was satisfactorily used for the determination of Ag in various environmental waters.
https://www.chemmethod.com/article_86897_c163e7ec4a589565e99c1573d4af2923.pdf
Preconcentration
microextraction
Silver
Water
Atomic absorption spectrometry
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
591
598
10.33945/SAMI/CHEMM.2019.5.8
87051
مقاله پژوهشی
A Rapid and Highly Effectual Protocol for the Synthesis of Bis-coumarins using Triethylaminium-N-sulfonic Acid Tetrachloroaluminate under Solvent-Free Conditions
Asieh Kargar-Dolatabadi
2920kargarda@gmail.com
1
Abdolkarim Zare
abdolkarimzare@yahoo.com
2
Department of Chemistry, Payame Noor University, PO BOX 19395-3697, Tehran, Iran
Department of Chemistry, Payame Noor University, PO BOX 19395-3697, Tehran, Iran
In this work, a rapid and highly effectual protocol for the synthesis of bis-coumarins has been developed. The one-pot quasi three-component reaction of aromatic aldehydes (1 eq.) with 4-hydroxycoumarin (2 eq.) in the presence of catalytic amount of protic acidic ionic liquid triethylaminium-N-sulfonic acid tetrachloroaluminate (TSAT) under solvent-free conditions afforded the mentioned compounds in high yields and short reaction times.
https://www.chemmethod.com/article_87051_872c2afd22c5e7f16d10a62e859196d7.pdf
Bis-coumarin
4-Hydroxycoumarin
Protic acidic ionic liquid
Triethylaminium-N-sulfonic acid tetrachloroaluminate (TSAT)
Solvent-free
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
599
605
10.33945/SAMI/CHEMM.2019.5.9
84926
Solvent Free Stereoselective Iodoacetoxylation of Alkenes and Glycals Using N-Iodosuccinimide and Acetic Anhydride
Aleti R. Reddy
alta@rediffmail.com
1
Saleem Farooq
saleemiiim@gmail.com
2
Bashir Ahmad Dar
bashir_15_dar@yahoo.com
3
Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, India
Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, India
Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, India
The reactions of glycals with N-iodosuccinimide and acetic anhydride under solvent free conditions provide 2-deoxy-2-iodo-α-mannopyranosyl acetates with good stereoselectivity. The developed process is in accordance with principles of green chemistry and addresses the shortage of such methods for the regioselective iodo acetoxylation of alkenes.
https://www.chemmethod.com/article_84926_ec7323f8fc9f3ac4f785bd34e202c8fa.pdf
N-iodosuccinimide
stereoselective
acetic Anhydride
iodoacetoxylation
eng
Sami Publishing Company
Chemical Methodologies
2645-7776
2588-4344
2019-09-01
3
5
606
619
10.33945/SAMI/CHEMM.2019.5.10
84291
Synthesis of Pectin Graft Drug to Treatment the Wounds and Inflammations
Firyal Mohammed Ali
drfiryal55@gmail.com
1
Hameed Muthanna Ahmed
hameedqw@gmail.com
2
Al-Mustansiriyah University, College of Science, Department of Chemistry, Baghdad, Iraq
Al-Mustansiriyah University, College of Science, Department of Chemistry, Baghdad, Iraq
This idea of this work included preparation new adhesive drug polymers to treatment the wounds and inflammations, new drug polymers were prepared as bio adhesive, which have high viscosity and treatment the wounds by the adhesion of both ends of the wound when it put as well as the speed of the treatment of external inflammation, because it remains inherent to the position of injury fast time, because of the property for it viscosity. A new bio adhesive polymer was prepared by modification of Pectin structure with acrylic acid (P1) as a spacer by using ceric ammonium nitrate (CAN) as an initiator, and new graft copolymer was substituted with amino drugs such as amoxicilli produced amide polymer. This design carries controlled delivery of therapeutic agents which could release the entrapped drug over an extended period of time due to its biodegradable, nontoxic and slow digesting nature. All prepared adhesive drug polymers were characterized by FTIR, 1H-NMR spectroscopes, thermo gravimetric analysis TGA and DSC were studied. intrinsic viscosities and physical properties of all prepared polymers were measured, biological activity was studied for all adhesive drug polymers this new adhesive drug biological polymers were applied on different infected mice and wounds, It gave outstanding results and compliance mice infected with a full recovery by a short period of time. The prepared drug copolymer was analyzed in different pH values at 37 °C in vitro study and controlled drug release was compared at zero time and after three days. The rate of hydrolysis in basic medium was found higher than acidic medium. It was concluded that modified drug release with extended drug action via slow release and in vivo performance was noted to be promising.
https://www.chemmethod.com/article_84291_ceaf9f857c4c1b52c3e465d0f9b46a0d.pdf
Pectin
Controlled delivery
Adhesive drug polymers
Graft copolymer