ASLAM JAMAL; MOHAMMED MUZIBUR RAHMAN; SHER BAHADAR KHAN; MOHAMMED MARGUB ABDULLAH; MOHD FAISAL; ABDULLAH MUHAMMAD ASIRI; AFTAB ASLAM; PARWAZ KHAN; KALSOOM AKHTAR(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-06-20)
A comprehensive study on the synthesis, characterization and application of antimony oxide (α-Sb2O4) has been reported in this paper. Antimony oxide (α-Sb2O4) is successfully synthesized by hydrothermal method using antimony ...
MOHAMMAD AFRASIABI; ZEINAB REZAYATI ZAD; SHOKAT KIANIPOUR; ALI BABAEI; ALI REZA TAHERI(The chemical society of Pakistan is an approved society from the PSF., 2013-08-08)
A chemically modified electrode is constructed based on multi-walled carbon nanotube modified glassy carbon electrode (MWCNTs/GCE). It is demonstrated that this sensor could be used for determination of pharmaceutical ...
JIAN ZHANG; CHENGXIANG SHANG; LONGFEI JIN(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-04)
5-aryl-3-ferrocenyl-1-phenyl-2-pyrazolines have been synthesized by the reaction of α, β-unsaturated ketones with phenylhydrazine in ionic liquid [Bmim]OH. While 4-ferrocenyl-1,4-dihydropyridine-2,6-dimethyl-3,5-dicarboxylic ...
ZHUONAN LI; WENBI GUAN; YONGQIANG MA; HENG ZHAO; ZHAOHAI QIN(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-10)
A study into the environmental behavior of pyrimorph in lake water/sediment systems has been carried out. The residue of pyrimorph in water and sediment for aerobic and anaerobic tests was determined, respectively. For ...
WEI KE; NA-BO SUN; HONG-KE WU(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-09)
The title compound (C₁₇H₁₄F₂N₄SO) were synthesized and recrystallized from CH₃CN. The compound was characterized by ¹H-NMR, FTIR, MS, HRMS and X-ray diffraction. The compound crystallized in the Monoclinic space group C2/c ...
WEI KE; NA-BO SUN; HONG-KE WU(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-07)
A new 1,2,3-thiadiazole compound was synthesized and characterized by ¹H NMR, MS and HRMS. The crystal structure of the title compound (C₁₂H₁₁ClN₂O₄S₂, Mr = 346.80) has been determined by single-crystal X-ray diffraction. ...
MIR MUNSIF ALI TALPUR; TAJNEES PIRZADA; PETER SKABARA; THOMAS WESTGATE; MOHAMMAD RAZA SHAH(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-06)
Three new donor - acceptor [4] dendralene compounds have been synthesized. Wittig reaction was used for the preparation of first two compounds and third one by Knoevehagel condensation. Their mass was calculated by APCI ...
AKBAR MOBINIKHALEDI; MAHSA JABBARPOUR(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-06)
Chromene and spirocyclic 2-oxindole derivatives were readily synthesized in good yields via a one-pot three-component reaction involving Knoevenagel condensation of aromatic aldehyde or isatin with an active methylene ...
ZAHID HUSSAIN; PIR MOHAMMAD; KHAIR ZAMAN; KHALID MOHAMMED KHAN; SHAHNAZ PERVEEN; SADAF NIAZ(HEJ Research Institute of Chemistry, University of Karachi, Karachi, 2013-08-06)
The n-hexane fraction of the leaves of sugar beet was analyzed qualitatively and quantitatively using GC-MS and GC equipped with FID in separate experiments. The crude was extracted using ethanol and fractionated by n-hexane, ...
HONGZHEN HE; MEIZHEN WANG; HUAJUN FENG; XIN ZHENG; DONGSHENG SHEN(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-05)
To select nicotine-degrading bacterium for bioaugmented treatment of tobacco wastewater, the activities of antioxidant indicators such as superoxide dismutase (SOD), catalase (CAT) and glutathione (GSH), and the ability ...
DEQING ZOU; YAN ZOU; ZHIGANG TAI; QI WANG; YALING YANG(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-04)
A simple salting-out assisted liquid–liquid extraction (SALLE) method with acetonitrile combined with high-performance liquid-chromatography was developed and applied for the determination four kinds of estrogens (estradiol ...
HUI CANG YU LU; FEN NV HAN; JING LING SHAO; QI XU(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-04)
Attapulgite clay@Fe₂O₃ (ATP@Fe₂O₃) composite was prepared by a one-pot calcination process via the ionic liquid (IL), [bmim]PF₆, using two cheap, ecofriendly materials (i.e., Fe(NO₃)₃•9H₂O and ATP, which is a magnesium ...
AHMET TUTAR; RAMAZAN ERENLER; JEAN-FRANÇOIS BIELLMANN(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-04)
4,4-Difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) dyes are important in synthetic and applied chemistry. The reaction of pyrrolomethane 1 with acetyl chloride and boron trifluoride etherate in the presence of triethylamine ...
KADRIYE KIZILBEY; SERAP DERMAN; ZEYNEP MUSTAFAEVA(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-03)
In organic chemistry microwave irradiation has become a common heat source and the use of microwave irradiation is also increasingly studied for polymerization reactions. Polymers have been synthesized at long reaction ...
OZLEM GURSOY KOL; HAYDAR YUKSEK; FATIH ISLAMOGLU(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-03)
In the present study 3-alkyl(aryl)-4-amino-4,5-dihydro-1H-1,2,4-triazol-5-ones 2a-i reacted with 3-methyl-thiophene-2-carboxyaldehyde to afford the corresponding 3-alkyl(aryl)-4-(3-methyl-2-thienylmethyleneamino)-4,5-dih ...
YAN-HUA CAI(The chemical society of Pakistan is an approved society from the PSF., 2013-08-02)
In order to synthesize more function amides, N, N'-bis(benzoyl) azelaic acid dihydrazide(NA(A)) was synthesized from benzoyl hydrazine and azelaoyl chloride which was deprived from azelaic acid via acylation. The influence ...
DONGGENG WANG; LINA CHEN; QING ZHU; GUANGTONG CHEN; BAOHUA LIU(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-01)
Emodin is a widely occurring natural product and has been studied extensively for its varieties of pharmacological activity. In attempt to know more deeply about its metabolism, this paper investigated the metabolites of ...
DAO CAI WANG; YU CAO; ZHI JIAN HE; SHUN YAO; HANG SONG(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-02)
The objective of the present work was to develop and validate a rapid analytical method for determination of enantiomeric purity of hydantoin-5-acetic acid. The method was based on pre-column derivatization of hydantoin-5-acetic ...
XIANG-FENG WU; CHANG-RUI WANG; YONG-KE ZHAO(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-11)
Mesoporous silica submicrospheres with high specific surface area, 930.9m⁹/g, were synthesized without using any acid or alkali as catalyst. Tetraethoxysilane as silica source, octylamine as template and polyoxyethylene ...
JALE NAKTIYOK; ABDUL KADIR ÖZER; MURAT ÇELIK; MUSTAFA ŞAHIN GÜLABOĞLU(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2013-08-10)
In this study, the origin and structure of the soluble organic matter in the phosphate rock was investigated. The organic matter was extracted with n-hexane from the phosphate rock. Its structure was analyzed by using TG, ...