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Browsing Issue 05 by Title

Browsing Issue 05 by Title

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  • Improved Synthesis of Ferrocenyl aniline 
    ATAF ALI ALTAF; NASIR KHAN; AMIN BADSHAH; BHAJAN LAL; SHAFIQULLAH; SAEED ANWAR; MUHAMMAD SUBHAN (Karachi: The Chemical Society Of Pakistan, 2011-10-15)
    Comparative synthesis of ferrocenyl aniline from nitro phenyl ferrocene using different reducing agents, like Sn/HCl, Zn/HCl, Pd-charcoal/NH₂-NH₂ and Zn/formic acid, has been studied and found that Zn/formic acid system ...
  • The investigation of the Anti-hypercholesterolemic Activities of Thymbra Spicata Labiata Oil (Karabas Thyme Oil) and Atorvastatin 
    HILAL DEMIRALAY; MEHMET. AKDOGAN; METIN CIRIS (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-10-23)
    The leaves of TSL (Thymbra Spicata Labiatae), which include plant sterols and stanols, are used in the treatment of hypercholesterolemia, which is a highly prevalent health problem. This study aimed to determine the ...
  • Microbial Transformation of Vanillin Isolated from Melia azedarach to Vanillyl Alcohol followed by Protease Inhibition and Antioxidant Activity 
    DURRE SHAHWAR; MUHAMMAD ASAM RAZA; TOQIR ALI; VIQAR UDDIN AHMAD (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-10-20)
    Vanillin (1) was isolated from ethanolic extract of Melia azedarach L. and incubated in the culture of Aspergillus niger GC-4, which resulted in vanillyl alcohol (2). The product was identified by mass, ¹H and ¹³C-NMR ...
  • Microwave Assisted Synthesis of Triphenodioxazines: A Novel and Convenient Approach 
    MUHAMMAD NAJEEBULLAH; MUNAWAR ALI MUNAWAR; AMRAN WAHEED; AHSAN SHARIF; EJAZ AHMED (Karachi: The Chemical Society Of Pakistan, 2011-10-11)
    A novel and economical method for the synthesis of triphenodioxazines is described. The method involves the oxidative cyclisation of the intermediates 2,5-bis-(arylamino)-3,6- dichlorocyclohexa-2,5-diene-1,4-dione in 95-97% ...
  • Modeling of Cd(II) Sorption on Mixed Oxide 
    MUHAMMAD WASEEM; SYED MUSTAFA; ABDUL NAEEM; KHIZAR HUSSAIN SHAH; SAMAD YAR HUSSAIN; MUHAMMAD SAFDAR (Karachi: The Chemical Society Of Pakistan, 2011-10-02)
    Mixed oxide of iron and silicon (0.75M Fe(OH)₃:0.25M SiO₂) was synthesized and characterized by various techniques like surface area analysis, point of zero charge (PZC), energy dispersive X-rays (EDX) spectroscopy, ...
  • Optimal Method for Preparation of Magnetite Nanoparticles 
    UMAR SAEED KHAN; NAZIR SHAH KHATTAK; AMINUR RAHMAN; FARIDULLAH KHAN (Karachi: The Chemical Society Of Pakistan, 2011-10-03)
    This paper deals with the synthesis and characterization of magnetite nanoparticles via the controlled modified chemical coprecipitation method using ferrous and ferric salt solution in alkaline medium with out any surfactant ...
  • Phytochemical and Antimicrobial Studies of Grewia tenax 
    EJAZ AHMED; AHSAN SHARIF; SABBIR HUSSAIN; ABDUL MALIK; MUKHTAR-UL-HASSAN; MUNAWAR ALI MUNAWAR; SAEED AHMAD NAGRA; JAMIL ANWAR; MUHAMMAD ASHRAF; NIGHAT AFZA; MAKSHOOF ATHAR (Karachi: The Chemical Society Of Pakistan, 2011-10-12)
    For the first time eleven compounds have been isolated from the ethyl acetate soluble fraction of whole plant of Grewia tenax namely, β-sitosterol (1), β-sitosteryl acetate (2), β-amyrin (3), β-amyrin acetate (4), ...
  • Phytochemicals from Ipomoea carnea collected from Murree Hills 
    MUHAMMAD SALEEM; MUHAMMAD IMRAN TOUSEEF; NAHEED RIAZ; MARIA HAFEEZ; SHABIR AHMED; ABDUL JABBAR; MUHAMMAD FARRUKH NISAR; SAEED AHMAD; IRSHAD AHMAD (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-10-25)
    pomoea carnea has been identified as a medicinal shrub and produces a variety of secondary metabolites. Present study deals with the isolation and identification of a naturally occurring new compound, dodecyl-p-coumarate ...
  • Potentiometric Titrations of Para and Nitro Substituted Aromatic Acids and their Mixtures in Methylethylketone 
    CEMAL ÖZEROĞLU; MESUT KARAHAN (Karachi: The Chemical Society Of Pakistan, 2011-10-08)
    In this study, it was the purpose to examine the potentiometric titrations of para and nitro substituted aromatic acids in methylethylketone (MEK) as a non-aqueous solvent. Good analytical results were obtained in determining ...
  • Preparation of Ethylcellulose Latex by Aqueous Dispersions: Importance of the Particle Size and Plasticizer 
    MAHMOOD IQBAL; CHENGZHI CHUAI; KALSOOM MAHMOOD; YAN HUANG; HUI LIU; MUHAMMAD AIJAZ (Karachi: The Chemical Society Of Pakistan, 2011-10-04)
    Based on phase transfer processes ethylcellulose (EC) latex was prepared using dibutyl sebacate (DBS) as plasticizer and oleic acid, ammonia water as an emulsifier to evaluate film-formation properties. Atomic force ...
  • Removal of Toxic Dichlorophenol from Water by Sorption with Chemically Activated Carbon of Almond Shells – A Green Approach 
    NADIA JAMIL; NAVEED AHSAN; MUNAWAR ALI MUNAWAR; JAMIL ANWAR; UMER SHAFIQUE (Karachi: The Chemical Society Of Pakistan, 2011-10-05)
    Chlorophenols (CP) represents a group of organic compounds having substituted chlorines attached to phenol ring. These trace organic pollutants represent a major environmental concern, because of toxicity, non-biodegradability, ...
  • Secondary Metabolites from Caragana ambigua 
    MAJIDA; REHAN KHAN; ITRAT FATIMA; AMAN KARIM; ABDUL MALIK; RASOOL BAKHSH TAREEN (Karachi: The Chemical Society Of Pakistan, 2011-10-18)
    A new naturally occurring pregnane derivative named as ambiguanol (1) has been isolated from ethyl acetate soluble sub-fraction of the ethanolic extract of Caragana ambigua along with E-cinnamic acid (2), β-sitosterol ...
  • Studies of Antifungal Activity of Forsskalea tenacissima 
    MUHAMMAD QAISAR; VIQAR UDDIN AHMAD; MOHAMMAD NISAR; SYED NAEEMUDDIN GILANI; SAMREEN PERVEZ (Karachi: The Chemical Society Of Pakistan, 2011-10-14)
    Antifungal activity of different extracts from Forsskalea tenacissima prepared by solvent-solvent extraction and vacuum liquid chromatography (VLC) was determined. Extracts were found to be active against Candida albicans, ...
  • Synthesis and Characteristics of UV-Curable Polyurethane-Co-Acrylic Coatings for Stainless Steel 
    JOON. SUK CHOI; SHER BAHADUR KHAN; EUI SOUNG JANG; JONGCHUL SEO; HAKSOO HAN (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-10-22)
    UV-curable polyurethane acrylate (PU) has been synthesized by reacting polyol (polycaprolactone triol) and diisocyanate (isophorone diisocyanate) and improved the adhesion properties of PU by coating with 50 weight percent ...
  • Synthesis and Physiochemical Investigation of Cobalt (II) and Nickel (II) Complexes of 1-2-[(Z)-2-(3-acetyl-4-hydroxyphenyl)-1-diazenyl]phenyl-1-ethanone 
    ABDELSALAM MAATOQ HAMIL; MAREI MAILOUD EL-AJAILY (Karachi: The Chemical Society Of Pakistan, 2011-10-07)
    Two divalent metal complexes of Co(II) and Ni(II) ions with the 1-2-[(Z)-2-(3-acetyl-4- hydroxyphenyl)-1-diazenyl]phenyl-1-ethanone were synthesized and investigated by several tools such as; CHN elemental analyses, molar ...
  • Synthesis of High-Activity TiO2/WO3 Photocatalyst via Environmentally Friendly and Microwave Assisted Hydrothermal Process 
    GUANGJUAN REN; YUAN GAO; JUNGANG YIN; AN XING; HUITAO LIU (Karachi: The Chemical Society Of Pakistan, 2011-10-09)
    This work focused on the synthesis of high-activity TiO₂/WO₃ photocatalysts through an environmentally friendly and novel process. A high energy-efficient microwave assisted hydrothermal method was employed to prepare ...
  • The Synthesis of N,S-Substituted compounds from the reactions of 2-Nitrohalobuta-1,3-diene with Mercaptocoumarin 
    Fatma GÜLAY KIRBASLAR; FİLİZ AVCI; CEMİL İBİS (HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2011-10-26)
    4-Bromo-1,3,4-trichloro-2-nitro-1-(7-coumarinthio-4-methyl)-1,3-butadiene (3), and 4-Bromo-3,4-dichloro-2-nitro-1,1-bis (7-coumarinthio-4-methyl)-1,3-butadiene (4) were synthesized from the reactions of 4-bromo-1,1,3,4-t ...
  • Two Dimensional X-Ray Diffraction (2D-XRD) studies on Olivine of U.S.A. 
    SALMA JABEEN; SYED MOHSIN RAZA; MUHAMMAD ASHFAQ AHMED; MASOOM YASIN ZAI; KURT ERLACHER (Karachi: The Chemical Society Of Pakistan, 2011-10-01)
    The Olivine (Mg, Fe) 2SiO₄ of USA has been studied with two dimensional X-ray diffracto meter (D8 discover with GADDS). The two distinct phases of orthorhombic structure, one with Mg₈ [Fe₂ SiO₄] and the other with Mg₂ SiO₄ ...

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