Vol. 24 No. 2 (2010) | Bulletin of the Chemical Society of Ethiopia

Published: 2010-05-26

Evaluation of bisphenol A content in food from lacquered cans

G.H.M. Biego, A.S.S. Oga, K.D. Yao, L.P. Kouadio

DOI:

10.4314/bcse.v24i2.54717

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A reversed phase HPLC method for the analysis of nucleotides to determine 5’-PDE enzyme activity

Jie Hua, Ke-long Huang

DOI:

10.4314/bcse.v24i2.54719

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Hollow fibre supported liquid membrane extraction of diphenylhydramine, chlorpheniramine and ketoprofen in pharmaceutical products

Titus A.M. Msagati

DOI:

10.4314/bcse.v24i2.54723

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Determination of protonation constants of some 3-alkyl(aryl)-4-(p-t-butyl(benzyl/benzyliden)amino)-4,5-dihydro-1H-1,2,4-triazole-5-one derivatives in ethanol–water mixtures

Fatih İslamoğlu, İsmail Aksu, Bahittin Kahveci, Olcay Bekircan

DOI:

10.4314/bcse.v24i2.54732

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Synthesis, characterization and anti-tumour activity of iron(III) Schiff base complexes with unsymmetric tetradentate ligands

Fahmideh Shabani, Lotf Ali Saghatforoush, Shahriar Ghammamy

DOI:

10.4314/bcse.v24i2.54741

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Synthesis, characterization and antimicrobial studies of transition metal complexes of imidazole derivative

Saeed-ur-Rehman Rehman, Muhammad Ikram, Sadia Rehman, Alia Faiz, Shahn awaz

DOI:

10.4314/bcse.v24i2.54743

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KSF-supported heteropoly acids catalyzed one-pot synthesis of α-aminonitriles

Ezzat Rafiee, Solmaz Rashidzadeh, Sara Eavani, Mohammad Joshaghani

DOI:

10.4314/bcse.v24i2.54746

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DFT calculations on 1-hetero-2,5-cyclohexadiene-1-oxide: molecular structure and stability

E. Vessally

DOI:

10.4314/bcse.v24i2.54750

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Ab initio study, investigation of NMR shielding tensors, NBO and vibrational frequency of catechol thioethers

A. Bagheri Gh

DOI:

10.4314/bcse.v24i2.54751

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Hydration structure and water exchange dynamics of Fe(II) ion in aqueous solution

Ahmed M. Mohammed

DOI:

10.4314/bcse.v24i2.54752

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Preparation of novolacs using phenolic rich components as partial substitute of phenol from biomass pyrolysis oils

Xu Junming, Jiang Jianchun, Lv Wei

DOI:

10.4314/bcse.v24i2.54754

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Influence of complexing agent (Na₂EDTA) on chemical bath deposited Cu₄SnS₄ thin films

Anuar Kassim, Saravanan Nagalingam, Zulkefly Kuang, Atan Sharif, Tan Wee Tee, Ho Soon Min

DOI:

10.4314/bcse.v24i2.54755

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**Cuauthemone sesquiterpenes and flavones from Laggera tomentosa endemic to Ethiopia**

Kibrom Gebreheiwot, Dibaba Amenu, Nigist Asfaw

DOI:

10.4314/bcse.v24i2.54757

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The synthesis of 2-iminochromenes using mesoporous molecular sieve MCM-41 as a heterogeneous and recyclable catalyst

Majid M. Heravi, Nargess Poormohammad, Yahia Sh. Beheshtiha, Bita Baghernejad, Reihaneh Malakooti

DOI:

10.4314/bcse.v24i2.54759

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Efficient and convenient oxidation of benzyl halides to carbonyl compounds with Sodium nitrate and Acetic acid by phase transfer catalysis in aqueous media

Yu Lin Hu, Wei Wei, Qi Fa Liu, Ming Lu

DOI:

10.4314/bcse.v24i2.54760

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Synthesis, characterization and X-ray structure of an oxazine derivative

Iran Sheikhshoaie, Ferdinand Belaj, Ahmad Kamali

DOI:

10.4314/bcse.v24i2.54761

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Synthesis and characterization of new copoly(amide-imide)s based on N,N’-(4,4’-diphenylsulfone)bistrimellitimide with different diacids and diamines

Khalil Faghihi, Meisam Shabanian, Maryam Faraz

DOI:

10.4314/bcse.v24i2.54762

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Synthesis of 2,2-dimethyl-4-phenyl-[1,3]-dioxolane using zeolite encapsulated Co(II), Cu(II) and Zn(II) complexes

B.P. Nethravathi, K. Rama Krishna Reddy, K.N. Mahendra

DOI:

10.4314/bcse.v24i2.54763

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A solvent free and selective method for preparation of triphenylmethyl ethers of alcohols and nucleosides

Negar Zekri, Reza Fareghi Alamdari, Ali Khalafi-Nezhad

DOI:

10.4314/bcse.v24i2.54764

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Analysis of fragmentations of coumarins in mass spectrometry using the electronic charges of atoms

L. Cissé, L. Kaboré, A. Tine, A. Saba

DOI:

10.4314/bcse.v24i2.54765

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Singlet-triplet gap studies on aryl-cyclopentadienylidenes: indirect electronic effects

E. Vessally

DOI:

10.4314/bcse.v24i2.54768

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