untitled Graphical Contents / European Journal of Chemistry 4 (4) (2013) ii‐vii European Journal of Chemistry ISSN 2153‐2249 (Print) / ISSN 2153‐2257 (Online)  2013 EURJCHEM DOI:10.5155/eurjchem.4.4.ii‐vii.945 European Journal of Chemistry An I n t e r n a t i o n a l O p e n A c c e s s J o u r n a l Graphical Contents Volume 4, Issue 4, 31 December 2013 European Journal of Chemistry 4 (4) (2013) 329‐335 Synthesis and biological evaluation of novel β‐hydroxy benzimidazolyl sulfone fluoroquinolones by selective oxidation using ammonium molybdate catalysed H2O2 Batthini Guruswamy, Rama Krishnan Arul, Muggu Venkata Satya Rama Krishna Chaitanya and Sai Subrahmanya Praveen Kumar Darsi European Journal of Chemistry 4 (4) (2013) 336‐342 Synthesis of intermediate compounds with P‐N bond from (thio)carbamates and chlorodioxaphospholanes and ‐phosphorinanes and their reactivity Dmitry Murzin and Vera Kolesova European Journal of Chemistry 4 (4) (2013) 343‐349 Investigation of hydrolysis and condensation of methyltriethoxysilane in aqueous systems Jan Kurjata, Krystyna Rozga‐Wijas and Wlodzimierz Stanczyk Si O Si EtO OH Me Me Si O O O Si Me Me O Si O Me Si Me OH OH Si O O Si O OEt O Si Me Me Si O Si O Si O OH Me OH Me O HO HO Me SiO Si OMe OEt Me OH Si OEt Me OH Si O Si O Si HO O Me OHMe HO Me Si HO Me OEt Si O Me OEt Si Me O Si O Si Me OH HO Me Me MenSi(OEt)4‐n hydrolysis condensation HO Me Me Graphical Contents / European Journal of Chemistry 4 (4) (2013) ii‐vii iii European Journal of Chemistry 4 (4) (2013) 350‐352 Synthesis and crystal structure of (S)‐5‐isopropyl‐5‐methyl‐2‐thiohydantoin Masaki Ichitani, Soh‐ichi Kitoh, Keiko Tanaka, Shuhei Fujinami, Mitsuhiro Suda, Mitsunori Honda, Akio Kuwae, Kazuhiko Hanai and Ko‐Ki Kunimoto European Journal of Chemistry 4 (4) (2013) 353‐359 Biochemical study for gold and silver nanoparticles on thyroid hormone levels in saliva of patients with chronic renal failure Abdulkadir Mohammed Noori Jassim and Fatin Fadhel Mohammed Al‐Kazaz (A) (B) The effect of different particle size of (A) AuNps (1‐700 mJ/Pulse; 2‐500 mJ/Pulse; 3‐600 mJ/Pulse) and (B) AgNPs(1‐750 mJ/Pulse; 2‐600 mJ/Pulse; 3‐500 mJ/Pulse) on the binding T3 to be used in the ELISA test. European Journal of Chemistry 4 (4) (2013) 360‐365 Simultaneous determination of sitagliptin and metformin in ternary mixture with sitagliptin acid degradation product Ramzia Ismail El‐Bagary, Ehab Farouk Elkady, and Bassam Mahfouz Ayoub NH2 N N N N F F F O F F F Sitagliptin Metformin European Journal of Chemistry 4 (4) (2013) 366‐369 Uptake of acid black 210 dye by organo‐montmorillonite clay minerals Cristina Volzone, Norma Gallegos, Carlos Cantera and Alberto Greco iv Graphical Contents / European Journal of Chemistry 4 (4) (2013) ii‐vii European Journal of Chemistry 4 (4) (2013) 370‐378 Mixed bivalent transition metal complexes of 1,10‐phenanthroline and 2‐aminomethylthiophenyl‐4‐bromosalicylaldehyde Schiff base: Spectroscopic, molecular modeling and biological activities Mutlaq Shedeed Aljahdali, Ahmed Abdou El‐Sherif, Rifaat Hasan Hilal and Abeer Taha Abdel‐Karim European Journal of Chemistry 4 (4) (2013) 379‐387 Complex formation equilibria of imipenem with some transition metal ions. Ternary complex formation reactions involving Cu(II) with imipenem and various bio‐relevant ligands Azza Abdelwahab Shoukry 0 20 40 60 80 100 2 3 4 5 6 7 8 9 10 pH % S p e ci e s Free Cu [Cu(Imip)(Glygly] [Cu(Imip,H-1)(Glygly] 110-1 1101 European Journal of Chemistry 4 (4) (2013) 388‐395 Highly active mesoporous SiO2‐TiO2 based nanocomposites for photocatalytic degradation of textile dyes and phenol Asima Siddiqa, Sumbul Sabir, Syed Tajammul Hussain and Bakhtiar Muhammad European Journal of Chemistry 4 (4) (2013) 396‐401 Synthesis, characterization and in vitro biological evaluation of some new diarylsulfonylurea‐chalcone hybrids as potential 5‐lipoxygenase inhibitors Bharat Kumar Bugata, Satya Venkata Gopala Krishna Kaladhar Dowluru, Vasudeva Rao Avupati, Venkateswara Rao Gavalapu, Divakara Laxman Somayajulu Nori and Sreenu Barla Graphical Contents / European Journal of Chemistry 4 (4) (2013) ii‐vii v European Journal of Chemistry 4 (4) (2013) 402‐407 New synthetic benzisoxazole derivatives as antimicrobial, antioxidant and anti‐inflammatory agents Chalya Mallappaji Shivaprasad, Swamy Jagadish, Toreshettahally Ramesh Swaroop, Chakrabhavi Dhananjaya Mohan, Rangaswamy Roopashree, Kothanahally Shivaramu Sharath Kumar and Kanchugarakoppal Subbegowda Rangappa European Journal of Chemistry 4 (4) (2013) 408‐413 Kinetics and mechanism of oxidation of amido black by sodium N‐halo‐p‐toluenesulfonamides in acidic medium: Spectrophotometric approach Jayachamarajapura Pranesh Shubha, Kotabagi Vinutha and Puttaswamy Puttaswamy Under identical experimental conditions, reactions with both the oxidants follow identical kinetics with a first‐order dependence on each [Oxidant]o and [AB] and a fractional‐order dependence on [HClO4]. European Journal of Chemistry 4 (4) (2013) 414‐421 Simultaneous determination of Simvastatin and Sitagliptin in tablets by new univariate spectrophotometric and multivariate factor based methods Hayam Mahmoud Lotfy, Maha Abdel Monem Hegazy and Sherif Abdel Naby Abdel‐Gawad European Journal of Chemistry 4 (4) (2013) 422‐424 Indion 190 resin: Reusable catalyst for the synthesis of quinoxalines and pyrido‐pyrazines at ambient temperature Gangadhar Asaram Meshram , Shruti Shashank Deshpande, Vipul Amratlal Vala and Pramod Arun Wagh vi Graphical Contents / European Journal of Chemistry 4 (4) (2013) ii‐vii European Journal of Chemistry 4 (4) (2013) 425‐433 Lead uptake by new silica‐carbon nanoparticles Hassan Hasan Hammud, Mayssam Mostafa Chahine, Bassem El Hamaoui and Younes Hanifehpour Silica carbon nanoparticle for lead uptake European Journal of Chemistry 4 (4) (2013) 434‐443 Nickel(II) complexes of novel thiosemicarbazone compounds: Synthesis, characterization, molecular modeling and in vitro antimicrobial activity Mutlaq Shedeed Aljahdali European Journal of Chemistry 4 (4) (2013) 444‐449 Development and validation of a reversed phase liquid chromatographic method for the determination of three Gliptins and Metformin in the presence of Metformin impurity (1‐cyanoguanidine) Ramzia Ismail El‐Bagary, Ehab Farouk Elkady and Bassam Mahfouz Ayoub European Journal of Chemistry 4 (4) (2013) 450‐453 Glycerol mediated, one pot, multicomponent synthesis of dihydropyrano[2,3‐c]pyrazoles Harvinder Singh Sohal, Arun Goyal, Rajeev Sharma, Rajshree Khare and Sanjay Kumar Graphical Contents / European Journal of Chemistry 4 (4) (2013) ii‐vii vii European Journal of Chemistry 4 (4) (2013) 454‐458 Green synthesis of novel pyrazole containing Schiff base derivatives as antibacterial agents on the bases of in‐vitro and DFT Salman Ahmad Khan, Abdullah Mohamed Asiri, Abdulrhim Alabbas Basheike and Kamlesh Sharma European Journal of Chemistry 4 (4) (2013) 459‐461 One‐pot multi‐component synthesis of tetrahydroquinazolinones via Biginelli condensation using molecular iodine as a catalyst Mohsen Abdel‐Motaal Gomaa, Abdel‐Wahed Rashad Sayed and Ragab Ali Masoud European Journal of Chemistry 4 (4) (2013) 462‐466 Polyethylene glycol (PEG‐400) as a medium for novel and efficient synthesis of 2‐phenyl‐2,3‐dihydroquinazolin‐4(1H)‐one derivatives Parthasaradhi Yerram, Rakhi Chowrasia, Suresh Seeka and Savitha Jyostna Tangenda European Journal of Chemistry 4 (4) (2013) 467‐483 The chemical reactivity of naphthols and their derivatives toward α‐cyanocinnamonitriles and ethyl α‐cyanocinnamates: A review of synthesis, reactions and applications of naphthopyrano derivatives Ashraf Hassan Fekry Abd El‐Wahab, Hany Mostafa Mohamed, Ahmed Mohamed El‐Agrody and Ahmed Hammam Bedair