B: Chemistry (148)
GJSFR: B
Chemical Variability of Anibarosaeodora Oils
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 5
The scarcity of natural populations of Anibarosaeodora in Brazil is well known and it has been attributed to the over-exploitation for extraction of its trunk wood essential oil for perfumery industry. The leaves of cultivated trees of this species could be a new source for future sustainable exploitation for the same purpose. Leaf oils from 35 trees of A. rosaeodora (“pau...
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Authors Maria das Grau00c3u00a7as Bichara Zoghbi, Selma Toyoko Ohashi, Rafael de Paiva Salomu00c3u00a3o, Giselle Maria Skelding Pinheiro GuilhonRead Journal Click Here
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Page No. 13 to 21
Synthesis, Characterization and in Vitro Cytotoxic Evaluation of Some Novel Heterocyclic Compounds Bearing Indole Ring
Published In: GJSFR Part: B: Chemistry Volume: 16 Issue: 1
Reaction 1H-indole-3-carboxaldhyde 1 with thiosemicarbazide derivatives to give thiosemicarbazone derivatives 2a,b. Cyclization of thiosemicarbazone 2a with HCl, Ac2O, phenacyl bromides and chloroacetic acid afforded the corresponding 1,2,4-triazole-3-thiol derivative 3, diacetyl derivative 4 and 1,3-thiazole derivative 5 and 1,3-thiazolidin-4-ones derivative 6 respectively. Compound 6 u...
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Authors Asmaa S. Salman, Naema A. Mahmoud, Anhar Abdel-Aziem, Mona A. Mohamed, Doaa M. ElsisiRead Journal Click Here
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Page No. 1 to 16
Evaluation of Accumulation ability for Pb, Cr, Ni, and Mn in Native Plants Growing on a Contaminated Air Force Shooting Range, Kaduna
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 5
The concentrations of Pb, Cr, Ni and Mn were determined in Sida veronicifolia, Chrystanthelum americanum, Cassia rotundifolia and Borreria filifolia samples using Atomic Absorption spectrophotometry at the Air Force shooting range, Kaduna.The heavy metals (Pb, Cr, Ni and Mn) concentrations in Borreria filifolia shoot were found to be (229.29 ± 0.03, 33.26 ± 0.00, 200 Ã...
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Authors Nwaedozie, G., C., Mohammed, Y. Faruruwa, D.M Nwaedozie J. M., Esekhagbe, R., ORead Journal Click Here
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Page No. 9 to 12
Determination of Phytochemical Constituents and Insecticidal Activity of Eucalyptus Globules against Cactus Pests
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 5
Cactus pear is widely distributed in Tigray and South Amhara Regional state and is the integral part of the economy of the people. It is commonly used as a famine food, feed for livestock, bee forage, a source of cash income and short time occupation, soil and water conservation, live fences etc. However, cactus is been gradually destroyed. The peoples relied on cactus are suffering from...
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Authors Yohannes Weldemariam, Shushay WelderufaelRead Journal Click Here
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Page No. 1 to 8
Electro-Oxidation of Methanol at Copper and Nickel Modified Clay Electrodes
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 4
Cu/Clay/316L and Ni/Clay/316L anodes were prepared by the electroplating of a Cu and Ni catalyst layer onto Clay/Stainless Steel plates for a direct methanol fuel cell (DMFC). The morphology and structure of the catalyst layers were analyzed by AFM and Optical microscopy. The catalyst coating layer shows an alloy character. The results show that oxides formation at the electrode surface ...
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Authors Chtaini Abdelilah N. Kouider, J. Bengourram, M. Mabrouki, A.ChtainiRead Journal Click Here
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Page No. 47 to 53
Synthesis and Characterization of Polyimide Thin Films by Thermal Evaporation and Solid State Reactions
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 4
In this research we describe the preparation of polyimide with pyromellitic dianhydride (PMDA) and p-phenylene diamine (PDA) thin films by physical vapor deposition. For this study, FTIR Spectrometer has been used to measure the effect of imidization temperature on the chemical structure of vapor-deposited thin films of the aromatic PI. When temperature increases, a general increase in a...
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Authors Ikram Atta AL-Ajaj, Aseel A.KareemRead Journal Click Here
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Page No. 7 to 11
Thermodynamics Studies of a Novel Calix [4] Arene Derivative Designed to Bind Herbicides
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 4
Calix[4]arenes can be modified to produce materials which can capture and remove contaminants effectively such as herbicides. Chlorophenoxy acids have been selected out of groups of herbicides to carry out this investigation. A new calix[4]arene derivative containing mixed pendant arms in its lower rim, 5, 11, 17, 23- tetra- butyl- 25,27- bis (diethylamino) ethoxy- 26, 28- (bis-methoxyet...
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Authors Ahmed Yahya Issa RubayeRead Journal Click Here
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Page No. 21 to 47
Studies on the Kinetics and Mechanism of Oxidation of Nitrones by Pyrazolinium Dichromate in aqueous DMSO medium
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 4
The kinetics and mechanism of oxidation of N, α- diphenylnitrones by some substituted nitrones by Pyrazolinium dichromateyielding benzaldehyde and nitrosobenzene in aqueous dimethyl sulphoxidemedium have been investigated. First order dependence with respect to both [PyDC] and [NO]. The compound was prepared and purity of the oxidant was estimated by iodometric method. The reactio...
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Authors M. Sekar, A. Santhi, J. Venkatesan, V. ThanikachalamRead Journal Click Here
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Page No. 13 to 19
Phytochemical Evaluation of Phytochemicals of Cassia Podocarpa
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 4
The usefulness of cassia podocarpa as locally antifungal agent necessitated the qualitative and quantitative determination of the phytochemicals present.The screening of the leaf and flower showed the presence of flavonoid, tannin, saponin, alkaloid and glycoside. The quantitative analysis showed that the flavonoid in the leaf (6.73 mg/g)was more than that of the flower (5.83mg/g). Also,...
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Authors Adewole EzekielRead Journal Click Here
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Page No. 1 to 5
Triarylantimony(V) Dicarboxylates: Synthesis, Characterisation and Reactions
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 3
A series of new triarylantimony(V) dicarboxylates of the general formula Ar3SbL2 (where Ar = C6H5and L = C6H5CONHCH2COO–, C6H2(OH)3COO–, C6H5COO–, C6H5C2H2COO–, C6H4(OH)COO–, (C6H5)2(OH)C.COO–) have been prepared by the reaction of triarylantimony(V) dichloride and a carboxylic acid in t...
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Authors Ram Nath Prasad YadavRead Journal Click Here
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Page No. 35 to 39
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Synthesie of BridgeHead-Fused 1,2,3-Triazolo[1,5-c]-1,2,4-Triazines: Novel Anti-inflammatory and Analgesic Therapeutic Systems.
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 3
An efficient method has been developed for the preparation of three novel heterocyclic compounds: Bridgehead-fused-5-methyl-6-methylketone-1,2,3-triazolo[5,1-c]-1,2,4-triazine(12), Bridgehead-fused-5-methoxyl -6- methylester-1,2,3-triazolo-[5,1-c]-1,2,4-triazine (14) and Bridgehead - fused - 5-methyl- 6-methylester-1,2,3-triazolo-[5,1-c] -1,2,4-triazine (16). The new heterocyclic systems...
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Authors Odin, E.M., Onojah, P.K.Read Journal Click Here
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Page No. 19 to 33
Dipolar 1,3-Cycloaddition:Synthesis of New Pyrazolinic Compounds Derived From Eugenol
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 3
It is now well known that pyrazolic and pyrazolinic derivatives are a class of heterocyclic compounds with high biological activity. In our laboratory, many studies have been made on the synthesis, stereochemistry, the complexing power and biological properties of various pyrazolic and pyrazolinic structures. The new pyrazolines presented in this work were prepared by cycloaddition of 1,...
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Authors Fatima Rouda, Imane Lakhtib, Abdelmejid Bahloul, Abdelmajid Abourriche, Abdelfettah Sebban, Said KitaneRead Journal Click Here
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Page No. 15 to 18
Thermogravimetric, X-ray diffraction and Infrared Studies on Samarium and Praseodymium Hexadecanoate in Solid State
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 3
The kinetics of thermal decomposition of samarium and praseodymium hexadecanoate (palmitate) was found to be of zero order and the energy of activation for the decomposition reaction for samarium and praseodymium hexadecanoate was in the range of 30-35 KJ mol-1 .The X-ray analysis showed that samarium and praseodymium hexadecanoate soaps have double layer structure with molecular axis sl...
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Authors Darshana Rodric, Kirti Vishwakarma, S.K.UpadhyayaRead Journal Click Here
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Page No. 1 to 6
Synthesis, Spectroscopic, Thermodynamic and Biological Activity Studies of Schiff Base and Metal Complexes Derived From 2-[ 1H-Pyrrol-2-Ylimino Methyl]- 5-Phenyl-1,3,4- Oxadiazole
Published In: GJSFR Part: B: Chemistry Volume: 15 Issue: 3
New metal complexes of the ligand (HL) 2-[1H-Pyrrol-2-ylimino methyl]- 5-phenyl-1, 3,4-oxadiazol with the metal ions Co(II), Ni(II) and Cu(II), were prepared in alcoholic medium. The Schiff bases were condensed by using [Pyrrolcarboxaldehyde] with[2-amino-5-(phenyl-1, 3,4-oxadiazole] in alcoholice medium. As the Schiff baseprepared was tridentate ligand, it was used for forming complexes...
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Authors Nazk Mohammed Aziz, Naser Dhiya ShaalanRead Journal Click Here
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Page No. 7 to 14
