American Journal of Chemical Research


Synthesis of Bicyclic Adduct through Regioselective Baeyer-Villager oxidation

Research Article of American Journal of Chemical Research Synthesis of Bicyclic Adduct through Regioselective Baeyer-Villager oxidation Bello Y. Makama* and Wahidullah Azizi Division of Mathematics, Sciences & Technology, American University of Afghanistan, Darul-Amman, Kabul, Afghanistan Baeyer-Villager oxidation reaction has become accepted as a right approach in the ring expansions for the preparation of both bicyclic and tricyclic lacotnes; however, successful application of the regioselective Bayer-Villager oxidation protocol to the synthesis of particularly congested scaffolds remains distinctly tricky. Herein the Baeyer–Villiger oxidation of Bicyclo[3.2.0]hept-3-ene-6-one is studied with oxygen insertion leading to the functionalized oxabicyclic adduct with complete regioselectivity. Keywords: bicyclic adduct, regioselectivity, Bayer Villager oxidation, synthesis ...

Organodiphosphines in Monomeric PtP2X2 (X = OL, NL, CN, BL) Derivatives Structural Aspects

Review Article of American Journal of Chemical Research Organodiphosphines in Monomeric PtP2X2(X = OL, NL, CN, BL) Derivatives Structural Aspects Milan Melník, Andrea Forgácsová, Peter Mikuš Comenius University in Bratislava, Faculty of Pharmacy, Department of Pharmaceutical Analysis and Nuclear Pharmacy, Odbojárov 10, SK-832 32 Bratislava, Slovak Republic Comenius University in Bratislava, Faculty of Pharmacy, Toxicological and Antidoping Center, Odbojárov 10, SK-832 32 Bratislava, Slovak Republic In this review are classified and analyzed structural parameters of over seventy examples of monomeric PtP2X2 (X = OL, NL, CN or BL) derivatives in which P donor ligands are organodiphosphines. These complexes crystallize in four crystal systems: tetragonal (x1), triclinic (x11), orthorhombic (x19) and monoclinic (x40). The complexes were divided into the two groups: Pt(η2-P2L)(XL)2 (X = O, N, CN or B) and Pt(η2-P2L)(η2-X2L) (X = O or N). The chelating ligands create wide of metallocyclic rings and the effects of both steric and electronic factors influence on the values of L-Pt-L bite angles. The some cooperative effects were found and are discussed with trans-influence of the respective donor atoms. Keywords: Structure, organodiphosphine, PtP2X2 (X = OL, NL, CN, BL), review ...

Synthesis, Characterization and Antimicrobial Properties of Pd(II), Cr(III), Ni(II) and Co(II) Metal Complexes of Aniline and Sulphadiazine Schiff Bases as mixed Ligands

Research Article of American Journal of Chemical Research Synthesis, Characterization and Antimicrobial Properties of Pd(II), Cr(III), Ni(II) and Co(II) Metal Complexes of Aniline and Sulphadiazine Schiff Bases as mixed Ligands 1Ejelonu Benjamin Chibuzo, 1*Oyeneyin Oluwatoba Emmanuel, 3Akele Olatunbosun Emmanuel, 2Olagboye Sulaiman Adeoye 1Department of Chemical Sciences, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria; 2Chemistry Department, Ekiti State University, Ado-Ekiti, Ekiti State, Nigeria; 3Department of Microbiology, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria Novel Pd(II), Cr(III), Ni(II) and Co(II) metal complexes of Schiff bases were synthesized from the condensation reaction between salicylaldehyde and aniline (L1) and sulphadiazine (L2). They were characterized using FTIR and UV-Visible spectroscopy and subjected to conductivity, melting point and solubility measurements. The complexes are non-toxic, non-electrolytic and stable solids. The involvement of the azomethine nitrogen in coordination with the metals was confirmed by the IR and UV results. They showed good inhibitory activities against various microorganisms. Keywords: Aniline Schiff bases, Sulphadiazine Schiff bases, Transition metal complexes, Antimicrobial properties, Synthesis, Spectral studies ...

Kinetics of Acidic Mn(VII) Oxidation of Acetaldehyde in Aqueous and 5% Ethanol-Water Solvents

Research Article of American Journal of Chemical Research Kinetics of Acidic Mn(VII) Oxidation of Acetaldehyde in Aqueous and 5% Ethanol-Water Solvents 1*Latona Dayo Felix, 2Adejoro Ajibade 1*Department of Chemical Sciences, Osun State University, PMB 4494 Osogbo, Nigeria. 2Department of Chemistry, University of Ibadan, Nigeria. Kinetics of acidic Mn(VII) oxidation of acetaldehyde in aqueous and 5% ethanol-water solvents were studied via pseudo-first order condition at λmax 525nm. The reaction showed a first order dependence with respect to acetaldehyde concentration, [Mn(VII)], fractional order to [H+] and independent on the ionic strength of the solution. Michaelis-Menten plot showed the existence of an intermediate complex and dependence on hydrogen ion is in the form kobs= a + b[H+]. However, oxidation reaction is generally faster in non-aqueous solvent than in aqueous solvent. Product analysis revealed the presence of carboxylic acid and stoichiometric study suggests the consumption of 2 moles of MnO4- by 3 moles of acetaldehyde in both solvents. Thermodynamic parameters of activation were obtained from Arrhenius and Erying’s equations. A plausible associative mechanism in agreement with kinetic and spectroscopic results was proposed. Keywords: Potassium permanganate, Acetaldehyde(A), Hydrated acetaldehyde(HA), sulphuric acid, potassium nitrate, Ionic strength(I) and activation parameters ...

Dr Chunya Li
Professor, College of Chemistry and Materials Science, South Central University for Nationalities, Wuhan, Hubei, China

Dr Mohammad Hadi Dehghani
Professor, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences

Dr Mohamed Abdel Moneim Deyab
Physical Chemistry, Egyptian Petroleum Research Institute (EPRI) Cairo

Dr Boumediene Haddad
Associate professor (lecturer and Scientific Researcher), Department of Chemistry, Dr. Moulay Taher University

Dr. Anil Kumar
Assistant Professor, Department of Chemistry, Lovely Professional University

Dr. Prakash Prajapat
Assistant Professor, Department of Chemistry, Mehsana Urban Institute of Sciences, Ganpat University

Dr Swapnila Roy
30B/4,Mahendra Roy lane,Kolkata-46.

Dr Suban K Sahoo
Assistant Professor, Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT) Ichchanath

Dr Azeez Abdullah Barzinjy
Department of Physics, College of Education, Salahaddin University

Dr. Rasha Samir Mohamed Kamal
Professor researcher associated, Egyptian Petroleum Research Institute

Dr Sharma Kumari Kavita
Department of Chemistry, Idaho State University

Dr Qingchun Ge
Professor, College of Environment and Resources, Fuzhou University

Dr Mohamed A. Hassaan
Researcher, National Institute of Oceanography and Fisheries (NIOF)

Dr Hassan Karimi-Maleh
Department of Chemistry, Graduate University of Advanced Technology

Dr Hager Rabea Mohamed Ali
Researcher, Central lab department, Egyptian Petroleum Research Institute (EPRI)

Dr Ho Soon Min
Associate Professor, INTI International University

Dr Slimane MEROUANI
Associate professor, Department of Chemical Engineering, Faculty of Pharmaceutical Engineering Process,University of Constantine

Dr. Himanshu Kapoor
Assistant Professor, Department of Chemistry, Lovely Professional University

Dr. Harish Mudila
Asst. Professor, Dept. of Chemistry, Faculty of Technology and Sciences, Lovely Professional University

Dr. Praveen Kumar Sharma
Associate Professor, Department of Chemistry, Lovely Professional University

Dr. Keyur D. Bhatt
Head, Department of Chemistry, Mehsana Urban Institute of Science, Ganpat University

Dr Viraj H Mankar
Assistant Professor, Lovely Professional University

Dr. Marwa A. Fouad
Associate Professor, Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University

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1.Bello Y. Makama and Wahidullah Azizi. Synthesis of Bicyclic Adduct through Regioselective Baeyer-Villager oxidation. American Journal of Chemical Research, 2018, 2:9. DOI: 10.28933/ajcr-2018-11-1208 

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American journal of chemical research

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