Volume 31, Number 1 : Oriental Journal of Chemistry

Synthesis and Characterization of Some Fluorinated 1,5 – Benzothiazepines and Pyrazolines

28 Mar, 2015Volume 31, Number 1

Introduction One of the most important factors in the drug design is that fluorine is much more lipophilic than hydrogen, so incorporating fluorine in the molecule makes it more fat soluble, so it percolates...

Antitubercular activity and phytochemical screening of selected medicinal plants

28 Mar, 2015Volume 31, Number 1

Introduction Tuberculosis remains one of the major deadliest infectious diseases for humans. Approximately 9.2 million people develop the active disease each year, while 1.7 million cases of active disease result in death in the...

Ultra violet spectra studies of polystyrene films in presence of some transition metal complexes with 4-amino-5-pyridyl)-4h-1,2,4-triazole-3-thiol

28 Mar, 2015Volume 31, Number 1

Introduction Triazoles are five memberd heterocyclic compounds containing three nitrogen and two carbon atoms. The substituted triazole with sulphur atom and amine group are considered to be good coordinating ligands because they involved both...

Fed-Batch Fermentation for Propionic, Acetic and Lactic Acid Production

28 Mar, 2015Volume 31, Number 1

Introduction Propionibacterium is gram-positive, nonmotile, catalase-positive, nonsporeforming, rod-shaped and anaerobic to aerotolerant bacteria.[1] The genus of Propionibacterium is separated into two groups: the “cutaneous” and the “dairy” Propionibacteria, based on their habitat. [2] They...

Solvent-Free Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles Using Nano Fe3O4@SiO2-OSO3H as a Stable and Magnetically Recyclable Heterogeneous Catalyst

28 Mar, 2015Volume 31, Number 1

Introduction In synthetic organic chemistry, the one-pot multicomponent reaction (MCR) strategy has become a powerful tool to improve the efficiency of a reaction wherein a reactant is subjected to successive chemical reactions in one...

Reaction of 1-Carboxymethyluracil with Amino acid alkyl ester hydrochloride

28 Mar, 2015Volume 31, Number 1

Introduction Heterocyclic compounds [1, 2] have received considerable attention due to their wide range of pharmacological activities. Pyrimidine is most important heterocyclic compound with two nitrogen atoms. Different Pyrimidine derivatives [3] comprises of interesting...

Synthesis, spectral and biological studies of new Mn(II) and Fe(II) complexes of 2,3-Butanedione 3-monoxime

28 Mar, 2015Volume 31, Number 1

Introduction Ligand, a metal surrounded by a cluster of ions or molecule, is used for preparation of complex compounds named as Schiff base, which are condensation products of primary amines and aldehydes or ketones...

Effect of Medicinal Plants on Free Radical Scavenging: Herb-Herb Interactions

28 Mar, 2015Volume 31, Number 1

Introduction Herbs have been frequently used in many domains including medicine, nutrition, flavoring, beverages, dyeing, repellents, fragrances, cosmetics, smoking, and other industrial purposes (1-3). Beside herbal drugs, using synthetic drugs were also developed since...

Synthesis and Characterization of Alumina filled Polyesteramide derived from Jatropha Curcas seed oil

28 Mar, 2015Volume 31, Number 1

Introduction Polyesteramide resins are amide modified alkyds which contain both amide (-CONH-) and ester (-COOC-) linkages and known for the improve performances over traditional alkyds1-3. Incorporation of aluminium in the polymeric resin further improves...

Systhesis and Characterization of Some Chromium (Iii) Schiff Base Complexes

28 Mar, 2015Volume 31, Number 1

Introduction Schiff base complexes find important position in coordination chemistry and schiff base complexes with transition as well with heavy metals are used in organic synthesis, analytical reagents, and catalysts and in medicine1. Certain...

Comparative Physicochemical Evaluation of Fruits and Anti depressant Potential of volatile oils of fruits of Local Piper Species

28 Mar, 2015Volume 31, Number 1

Introduction Piper Linn., belonging to family Piperaceae is a very large genus of shrub,rarely herbs and trees, distributed throughout the tropical and sub-tropical regions of the world. About 30 species of the genus in...

Removal of hexavalent chromium ions from aqueous solution by adsorption using activated carbon prepared from Cucumis Melo Peel Activated carbon

28 Mar, 2015Volume 31, Number 1

Introduction Heavy metals are major pollutants in marine; ground and industrials, and even in treated wastewater. The presence of these metals in the environment has been a great concern because of their toxic nature...

Extracellular synthesis of copper nanoparticles using culture supernatants of Salmonella typhimurium

28 Mar, 2015Volume 31, Number 1

Introduction In the recent decades, metallic nanoparticles have been widely used in different industries due to their wide range of applications [1]. Metal nanoparticles exhibit unique electronic, magnetic, catalytic and optical properties that are...

Effect of FeSO4.7H2O and SnCl2.2H2O added as Chromium (VI) Reducers in Ordinary Portland Cement

28 Mar, 2015Volume 31, Number 1

Introduction Cement is a fine, soft, powder being used worldwide as building material for their strong binding properties when mixed with water, but this binding material contains water soluble hexavalent chromium, which generally causes...

Biosynthesis of Copper Oxide Nanoparticles using Extract of E.coli

28 Mar, 2015Volume 31, Number 1

Introduction Nanomaterials are defined as materials with at least one external dimension in the size range from approximately 1-100 nanometers. The synthesis and use of nanoparticles have gained consideration due to their unique electrical,...

Eco-friendly synthesis of 1-Aryl-8-methoxythiazolo [2’, 3’ : 3, 4] [1, 2, 4] triazino [5, 6-b] indoles under microwave ir-radiations

28 Mar, 2015Volume 31, Number 1

Introduction The indoles exhibiting antihistaminic, antithyroid, antitubercular, antifungal, antibacterial activities1-3, anthelminitics, antidepressants, platelet aggregation inhibitors, antineoplastic, vulcanization accelerators, photographic sensitizers4-11 properties are already been synthesized by different method but they requires longer reaction time...

Quantum mechanical investigation of 2,3-dihydro-1-methyl-2-thioxopyrimidin-4(1H)-one tautomers and their complexes with iodine.

28 Mar, 2015Volume 31, Number 1

Introduction Methimazole, carbimazole and propyltiouracilare anti-thyroid drug which depress the formation of thyroid hormones by inhibiting the first step of the hormonal biosynthesis which is the incorporation of oxidized iodine into tyrosine residues in...

Spectroscopic Studies of Charge Transfer Complexes of Some Amino Acids with Copper (II)

28 Mar, 2015Volume 31, Number 1

Introduction Metals are mainly toxic to living room organisms and they tighten to accumulate in their living room tissues. In recent years, there has been has growing public concern and awareness of toilets problems....

Fatty acid profile of Acacia tortilis (Forssk.) Hayne seed oil growing wild in south of Iran

28 Mar, 2015Volume 31, Number 1

Introduction Acacia is a genus belonging to the Fabaceae family and comprises about 135 species of trees which are widely spread throughout the arid and semi-arid tropics1. A. tortilis, commonly known as umbrella thorn...

One-pot green and efficient synthesis of xanthenedione derivativesusing [C4 (mim) 2](FeCl4)2as a magnetic room temperature dicationic ionic liquid

28 Mar, 2015Volume 31, Number 1

Introduction Xanthene derivatives are very important heterocyclic compounds and have been widely used as dyes fluorescent materials for visualization of bio-molecules and laser technologies due to their useful spectroscopic properties.1They have also been reported...

Triterpenoid from the extract of Mangifera indica L. roots having Antispermogenic activity

28 Mar, 2015Volume 31, Number 1

Introduction In continuation of our search on antispermogenic activity1,2 and interest on Mangifera indica L. roots1, we are reporting a new pentacyclic triterpenoid having antispermigenic activity. Different parts of the plant Mangifera indica L....

Nano drug delivery Study of Anticancer Properties on Ginger using QM/MM Methods

28 Mar, 2015Volume 31, Number 1

Introduction Man’s acquaintance with the medicinal properties of plants is of great antiquity. Even the higher mammals are said to be aware of the curative aspects of plant kingdom. Plants have been used in...

Synthesis, Characterization and Biological Evaluation of Some Novel Thiophene Anchored Fluorinated Heterocycles

28 Mar, 2015Volume 31, Number 1

Introduction Thiophene is sulfur containing five membered heterocyclic compound widely used as building block in agrochemicals1. Thiophene containing compounds exhibit antimicrobial2, antiparasitic3, anticancer4 and anticonvulsant 5 activities. 2-Styryl chromones are associated with various pharmacological...

Methane Sulphonic Acid is Green Catalyst in Organic Synthesis

28 Mar, 2015Volume 31, Number 1

Introduction Physical properties of Methane Sulphoic Acid Methane sulphonic acid is a clear colourless liquid available as a 70% solution in water and anhydrous form. The structure of methane sulphonic acid lends itself to...

Calorimetric and Thermodynamic Studies of Complex Ferrites in the Temperature Range of 298,15-673 K

28 Mar, 2015Volume 31, Number 1

Introduction Study of physico-chemical properties of ferrites formed Bi2O3 – MeIIО – Fe2O3 (MeII – alkaline earth metals) systems is of certain scientific and practical interest for directed synthesis of compounds with desired properties....

Study on Leakage of Sesame (Sesamum indicum L.) and Coconut (Cocos nucifera L.) Liposomes

28 Mar, 2015Volume 31, Number 1

Introduction Liposomes are important in medicinal, biotechnological, cosmetic, and industrial applications. They are used as delivery vehicles for drug or other active materials in their compartments. They have ability to encapsulate hydrophilic compounds within...

Synthesis and Characterization of Novel Thiazole Anchored Pyrazolyl Benzoxazoles

28 Mar, 2015Volume 31, Number 1

Introduction Heterocyclic compounds are pharmacologically and medicinally very important because most of the drugs present in the market today are containing heterocyclic scaffolds. Benzoxazole derivatives exhibits anthelmintic1, antiulcer2, antitumor3, antimicrobial4,5andanticancer6 activities. Benzoxazole containing compounds...

Quantum chemical studies on the corrosion inhibition of some hector bases on mild steel in acidic medium

28 Mar, 2015Volume 31, Number 1

Introduction The use of corrosion inhibitor is one of the most effective and highly cost-effective measures to mitigate corrosion of mild steel in acidic media [1-4]. Most of acid corrosion inhibitors are organic compounds...

Synthesis, Characterization and Antimicrobial activity of protected dipeptides and their deprotected analogs

28 Mar, 2015Volume 31, Number 1

Introduction Peptides are the constituents of proteins. They are biologically active chemical compounds formed by amino acid units linked together by amide linkage. They are useful pharmaceutical agents which are used for the treatment...

Heavy Metal Removal from Commercially-available Fruit Juice Packaged Products by Citric Acid

28 Mar, 2015Volume 31, Number 1

Introduction There are many products obtained from fruits, including fruit juice, canned, dried, and frozen fruit; pulps; and marmalades. Fruit composition is mainly water (75–90%), which is mainly found in vacuoles, giving turgor (textural...

Anti-cancer properties of green Tea Probed viaquantum mechanics calculations

28 Mar, 2015Volume 31, Number 1

Introduction Tea is the most consumed drink in the world after water. Unlike black and oolong tea, green tea production does not involve oxidation of young tea leaves [1-3]. Green tea is produced from...

Unification and Expansion of Wade-Mingos Rules with Elementary Number Theory

28 Mar, 2015Volume 31, Number 1

Introduction The Wade-Mingos rules have been exceedingly useful in the study of boranes, carboranes, main group element and transition metal carbonyl clusters for more than four decades1-3. These rules are referred to as 4n,...

Synthesis of Aza Derivatives of Isomers of Angular and Complex Phenothiazine Rings

28 Mar, 2015Volume 31, Number 1

Introduction Phenothiazine 1 structural modifications has been successfully utilized in the design of variety of pharmaceuticals that are clinically used for antitubercular activity 1, cholinesterase inhibitor 2, histamine antagonist 3 and multiple drug resistance...

Synthesis of 1-azabenzo[a]phenoxazin-5-one and 11-amino-1,8,10-triazabenzo[a]phenoxazin-5-one and their functionalized aryl derivatives via Mizoroki-Heck arylation methodology

28 Mar, 2015Volume 31, Number 1

Introduction Phenoxazine derivatives are compounds of great interest because of their several successful applications as dyes and drugs. They exhibit strong biological activities ranging from antidepressant1, antitumour2, anticancer3, antibacterial4, antituberculosis5 and schizophrenia agents6. Among...

Thermodynamic study of copper sulphate and zinc sulphate in water and binary aqueous mixtures of propylene glycol

28 Mar, 2015Volume 31, Number 1

Introduction In thermodynamic properties, partial molar volume is one of the most important tool which is useful in elucidating the various types of interactions like ion-ion, ion – solvent and solvent – solvent interactions...

Bioremediation of heavy metals by employing resistant microbial isolates from agricultural soil irrigated with Industrial Waste water

28 Mar, 2015Volume 31, Number 1

Introduction The presence of heavy metals and pesticides in the environment has been a subject of great concern due to their toxicity, non-biodegradable nature and the long biological half-lives for their elimination from biological...

Steroid from the seeds of Artabotrys odoratissimus

28 Mar, 2015Volume 31, Number 1

Introduction Artabotrys odoratissimus, Wight & Arn. [(Syn: A. uncinatus (Lam.) Merr. and Annona hexapetalus (L. f.) Bhandari)] of the family Annonaceae is a shrub distributed in tropical and temperate Asia from the southern part...

Structural and Electronic Properties of Folic Acid Adsorption on the Carbon Nanotubes: A Density Functional Theory Study

28 Mar, 2015Volume 31, Number 1

Introduction Single-walled carbon nanotubes (SWCNTs) are formed by the rolling of a single layer of sp2 carbon, called a graphene sheet, into a seamless hollow cylindrical tube with Nano scale dimensions.Graphene makes strong σ bonds...

Antibacterial effects of silver nanoparticles on Escherichia coli and Bacillus subtilis

28 Mar, 2015Volume 31, Number 1

Introduction The synthesis of nanoparticles of different chemical compositions, sizes, and controlled monodispersity is an important area of research in nanotechnology. Among noble metal nanoparticles, silver nanoparticles have a wide area of interest, thus,...

Synthesis and Characterisation of Phenanthroline Adducts of Pb(II) Complexes of BisN-alkyl-N-ethyldithiocarbamates

28 Mar, 2015Volume 31, Number 1

Introduction Dithiocarbamates are highly versatile monoanionic chelating ligands that form stable complexes with all the transition elements and the majority of main group elements, lanthanide and actinideelements(Hogarth 2012). Dithiocarbamates are prepared from primary or secondary amines.Depending upon the nature...

Liquid-Liquid Extraction-Chromogenic Systems Containing Iron(III), 4-Nitrocatechol and Tetrazolium Salts

28 Mar, 2015Volume 31, Number 1

Introduction Iron is an important environmental and bio-element, which forms complexes with various catecholicligands (1-7). The complexation behaviour of Fe(III) towards the well-known analytical reagent 4-nitrobenzene-1,2-diol (4-nitrocatechol, 4NC) (8, 9) has been studied in connection...

Phytoextraction of Heavy Metals by two Sorghum Spices in Treated Soil “Using Black Tea Residue for Cleaning-Uo the Contaminated Soil”

28 Mar, 2015Volume 31, Number 1

Introduction The industrial pollution in some provinces and areas such as Mazandaran province in lowland rice areas in Dashte-Naz, Mazandaran and Goharbaran is a major environmental issue as there is a great pole of...

Synthesis and Antibacterial Screening of Novel Fluorine Containing Heterocycles

28 Mar, 2015Volume 31, Number 1

Introduction Although the progress of science is rapid, the treatment of infectious diseases is still a major challenge for scientific world. This is mainly because of the increasing microbial infections and mutations occurring in...

Green Synthesis of Gold Nanoparticles

28 Mar, 2015Volume 31, Number 1

Introduction Nanotechnology has emerged as the interdisciplinary science conjugating the basic concept of engineering with the application of biology, chemistry, physics and medical science [1]. Research in the field of synthesis of nanoparticles has...

Categorization and Structual Determination of Simple and More Complex Carbonyl Clusters of Rhenium and Osmium Using K-Values and the Cluster Table

28 Mar, 2015Volume 31, Number 1

Introduction Recently, a cluster table for transition metal carbonyls and has been designed to assist in the categorization of clusters and tentative assignment of geometries of clusters1-5. The cluster table has been re-arranged in...

Primary Protection of Reinforced Concrete against Impact of Carbon Dioxide

28 Mar, 2015Volume 31, Number 1

Introduction Mathematical Simulation of Concrete Carbonization Durability of reinforced concrete within corrosion impact of environment can be conditionally subdivided into two periods (Fig. 1): Figure1:. Schematic view of damage within steel corrosion in concrete...

Simultaneous Estimation of Minoxidil and Aminexil in Bulk and Pharmaceutical Formulations by Rp-Hplc Method

28 Mar, 2015Volume 31, Number 1

Introduction Minoxidil Minoxidil, chemically known as 6-Piperidin-1-ylpyrimidine-2,4-diamine 3-oxide (Figure 1), is a potent direct-acting peripheral vasodilator that reduces peripheral resistance and produces a fall in blood pressure1. Minoxidil is widely used for the treatment of hair...

Removal of methylene blue dye from aqueous solutions by elaeagnusan gastifolial as an adsorbent

28 Mar, 2015Volume 31, Number 1

Introduction The removal of color from dye bearing effluents is one of the major problems due to the difficulty in treating such wastewaters by conventional treatment methods. The most commonly used methods for color...

Solid Phase extraction for trace amount Cu (II) by C18 modified carbon Nano tube and cupferron ligand in waste water Sample and determination it by flame atomic adsorption.

28 Mar, 2015Volume 31, Number 1

Introduction The Direct determination of trace metals especially toxic metal ions such as copper, tin, copper and metalloids arsenic, antimony and selenium from various samples requires mostly an initial and efficient pre-concentration step (Leyden...

Preparation and Characterization of Nylon 6/Silver Nanocomposite Fibers for Permanent Antibacterial Effect

28 Mar, 2015Volume 31, Number 1

Introduction Textiles have long been recognized as media to support the growth of microorganisms such as bacteria and fungi. These microorganisms are found almost everywhere in the environment and can multiply quickly when basic...

Study of Potassium Hydrogen Tartrate Unseeded Batch Crystallization for Tracking Optimum Cooling Mode

28 Mar, 2015Volume 31, Number 1

Introduction Potassium hydrogen tartrate is commonly called as cream of tartar. It is an acid salt found as sediments (wine tartar) in the wine fermentation stage. This white odorless powder is an important byproduct of...

Synthesis and Antioxidant Ability of 5-amino-1,3,4-oxadiazole Derivitives Containing 2,6-dimethoxyphenol

28 Mar, 2015Volume 31, Number 1

Introduction The reactive oxygen species (ROS) and other related free radicals species are capable to react either directly or indirectly, to damage all biomolecules, such as proteins, lipids, DNA and carbohydrates resulting in cell...

Studies on Chemical, Textural and Sensory Characteristics of Market and Laboratory Peda Samples Manufactured in Raipur City of Chhattisgarh

28 Mar, 2015Volume 31, Number 1

Introduction India produces about 140.6 million tons of milk annually, According to Prasad et al, (2012), about 50% of milk out of total production is converted to various traditional dairy products. Khoa is major...

The interaction of single walled carbon nanotube (SWCNT) with phospholipids membrane: in point view of solvent effect

28 Mar, 2015Volume 31, Number 1

Introduction Nature provides us with a very large number of channels or nano-pores embedded in cell membranes. The function of channels is to allow selectivity and specificity for a Variety of molecular species transport...

The Results of Physico – Chemical and Microscopic Investigations of Phosphorus Sludge

28 Mar, 2015Volume 31, Number 1

Introduction At the present time, the dumps of the former Shymkent production organization (ShPO) “Phosphorus” in southern Kazakhstan in six sludge storages with a total area of over 30 hectares contains about 500,000 tons...

Removal of Cd (II) and Hg(II) by chelating resin Chelex-100

28 Mar, 2015Volume 31, Number 1

Introduction Heavy metals such as cadmium (II) and mercury (II) are widely distributed throughout the environment as a result of soil erosion and of a broad range of industrial and agricultural processes. Inhalation of...

Synthesis of Macrocyclic Ionophore for the Development of Highly Selective Chloride Sensor

28 Mar, 2015Volume 31, Number 1

Introduction The determination of the concentrations of ionic species in aqueous samples is important in many areas of applied analytical chemistry, e.g., in process control, and in the analysis of clinical, horticultural, or environmental...

Inhibition of Mild Steel Corrosion in 1M H2SO4 Medium by Benzimidazole Mannich bases

28 Mar, 2015Volume 31, Number 1

Introduction Mild steel is largely used in industries as structural material, which undergoes corrosion easily in acidic medium. Acids are widely used for various industrial processes such as pickling, cleaning, descaling, acidizing etc. Because...

Adsorption of 2-picoline and 3-Amino-2-picoline onto kaolin and organo-modified kaolin

28 Mar, 2015Volume 31, Number 1

Introduction Natural clay minerals are well known compounds. The kinds of clays are largely used in industrial products such as ceramic, paint, coatings, water purification and drilling mud [1- 3].They are low cost, abundance in...

The Effect of Inorganic and Organic Pre-reducing Agents on Selenium Analysis in Tomato Sample using Microwave-Assisted Digestion Followed by FI-HGAAS

28 Mar, 2015Volume 31, Number 1

Introduction Selenium is an important trace element in biological and environmental systems1. This element is an essential trace mineral in the body. It is important part of antioxidant enzymes that protects cells against the...

PhotoCatalytic Degradation of Methyl Blue Dye and Enhanced Antibacterial Properties of Treated Wool with ZrCL4 and Dyeing with Madder

28 Mar, 2015Volume 31, Number 1

Introduction Natural dyes or colorants derived from flora and fauna are believed to be safe because of their non-toxic, non-carcinogenic and biodegradable nature. The present trend throughout the world is shifting towards the use...

Density Functional theory Study of 2,1,3-Benzoxadiazole-5-carboxylic acid as photosensitizers for dye-sensitized solar cells

28 Mar, 2015Volume 31, Number 1

Introduction The direct conversion of sunlight into electrical energy by solar cells is of particular interest because it has many advantages over most presently used electrical power generation methods. In recent years dye-sensitized solar...

Research of nickel’s electrochemical property in sulfuric acid solution by using potentiodynamic polarization curve.

28 Mar, 2015Volume 31, Number 1

Introduction Nowadays nonferrous metal industry is interested in using hydrometallurgical processes which are more cost-effective and ecologically more safe than pyrometallurgical ones [1-2]. The demand for nickel and its alloysare being increasing to use...

Synthesis of Tetraaza Derivatives of Benzoxazinophenothiazine

28 Mar, 2015Volume 31, Number 1

Introduction The application of phenoxazine and phenothiazine compounds and their derivatives in drug, textile, agriculture and other related industries has long been recognized. Phenoxazine and its derivatives were found to show tremendous pharmacological activities...

Synthesis and pharmacological evaluation of newer substituted 2-oxo/thiobarbiturinylbenzoxa/thiazepine derivatives as potent anticonvulsant agents.

28 Mar, 2015Volume 31, Number 1

Introduction The barbiturates comprise an important and valuable class of central nervous system depressants. Barbituric acid (2,4,6–trioxohexahydrophrimidine) derivative, phenobarbital and mephobarbital are used for clinical treatment of epilepsy. Further substitution pattern at 5th position...

The Extraction of Gold from E-waste by Hydrometallurgy

28 Mar, 2015Volume 31, Number 1

Introduction The fast development of technology has lead to an increase in a new generation of electronic and electrical waste in the world and has seriously threatened the environment and natural resources. E-waste like...

Synthesis of novel cobalt doped zinc oxide/carbon nano composite for the photocatalytic degradation of acid blue 113

28 Mar, 2015Volume 31, Number 1

Introduction Water scarcity and its contamination with organic pollutants cause a host of problems both to the environment and community. The scarcity of water has become a serious concern, with the rapid escalation of...

Catecholase activity investigations using in situ copper complexes continuing Schiff base derivatives with a theoretical calculation

28 Mar, 2015Volume 31, Number 1

Introduction Transition metal ions have an important role in biochemistry and biomimetic systems and may provide the basis of models for active sites of biological targets [1]. The presence of copper (II), iron (II)...

Effect of Zirconium Dioxide Nanoparticles as a Mordant on Properties of Wool with Thyme: Dyeing, Flammability and Antibacterial

28 Mar, 2015Volume 31, Number 1

Introduction The wool is a natural fiber with the protein structure [1]. We can note the properties of high water absorption (18 percent), reversible capacity due to α-helix structure, and high resistance to fire...

Kinetics and Mechanistic Approach to the Benzimidazolium fluorochromate Oxidation of Indole-2-aldehyde in various percentages of Acetic acid and Water mixture

28 Mar, 2015Volume 31, Number 1

Introduction Oxidation of aldehydes into the corresponding carboxylic acids is one of the important methods in organic synthesis as the carboxylic acids are versatile intermediates in a variety of synthetic transformations1. Numerous reagents and...

Stable oxygen and hydrogen isotope fractionation factors for the Goethite (hematite)-water system

28 Mar, 2015Volume 31, Number 1

Introduction The high reactivity of iron with oxygen results in various Fe-(hydr)oxides in surface and near surface environments. Among these commonly occurring Fe-minerals, the low solubility of the goethite (α-FeOOH) and hematite (α-Fe2O3), under...

Effect of Zirconium Chloride as a Mordant on Flammability of Dyeing Wool with Madder

28 Mar, 2015Volume 31, Number 1

Introduction The wool is a natural fiber with the protein structure [1]. We can note to properties of high water absorption (18 percent), reversible capacity due to α-helix structure, and high resistance to fire...

Biosynthesis and Characterization of Zinc Oxide Nanoparticles Using Root Extract of Zingiber Officinale

28 Mar, 2015Volume 31, Number 1

Introduction Metal nanoparticles have attained a great importance due to their unique feature such as catalytic, magnetic, optical and electrical properties (1)&(2). They have distinct or completely new properties when compared to their bulk...

Nano-structure of the cristobalite and tridymite stacking sequences in the common purple opal from the Gevrekseydi deposit, Seyitömer-Kütahya, Turkey

28 Mar, 2015Volume 31, Number 1

Introduction The gemmological classification of opal as precious, common, or hyalite (semi-precious) is based on whether the opal shows a play-of-color phenomenon caused by visible light diffraction on the stacking and whether it is...

Boron Nitride sheet as a novel surface for medical adsorption and drug synthesis

28 Mar, 2015Volume 31, Number 1

Introduction Boron nitride is a synthetic material, which although discovered in the early 19th century was not developed as a commercial material until the latter half of the 20th century. Boron and nitrogen are...

Kinetic and Thermodynamic study for the Oxidation of 4-Oxo-4-phenyl butanoic Acid by Tripropylammonium fluorochromate in Aqueous Acetic Acid Medium

28 Mar, 2015Volume 31, Number 1

Introduction The oxidation of organic substrates is an important aspect in modern organic synthesis, therefore, the search for new oxidizing agents is of interest to synthetic organic chemists. In recent years, there is continued...

Fused Heterocyclic Nitrogen Systems Containing Phosphorus Atom

28 Mar, 2015Volume 31, Number 1

Introduction Organophosphorus compounds Research has steadily flourished[1] because these compounds have been reported to possess anti-TMV activity2, herbicides3,4, insecticides5,6, molluscidal7, and some of here useful as strong basic proazaphosphatrans8, complexes9,10 also as superior catalyst...

Volume 31, Number 1

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