This study involves the aromatization reactions of some ketone derivatives through Manganese (III) acetate. The ketone derivatives used in the study are α-tetralone (1a), 2,4,7-trimethyl-7,8-dihydro quinolinone (1b)....This study involves the aromatization reactions of some ketone derivatives through Manganese (III) acetate. The ketone derivatives used in the study are α-tetralone (1a), 2,4,7-trimethyl-7,8-dihydro quinolinone (1b). At the end of the aromatization reactions of these ketone derivatives the synthesized structures of α-naphthol (2a), 2,4,7-trimethylquinoline-5-ol (2b) were identified by spectroscopic methods such as IR, 1H-NMR, <sup>13</sup>C-NMR, FAB-MS respectively. Micro-organism types such as Escherichia coli, ATCC 25922, Klepsiella pneumoniae, Staphylococcus aureus NRRL B767, Salmonella typhimurium NRRLB 4420, Bacillus subtilis NRS 744, Bacillus cereus ATCC 11778, Micrococcus luteus ATCC-9341, Listeria monoaytopenus ATCC-7644 bacteria and yeast fungus Candida albicans were used to study the anti-microbial properties of the synthesized 2b compound. The obtained results have determined that compound number 2b has a good antibacterial impact on Bacillus subtilis (NRS-744).展开更多
The Co（II） complex I and ammonium salt II were synthesized from the direct reaction of 1,2-ethylenediamine and cobaltous acetate tetrahydrate and manganese acetate tetrahydrate in anhydrous ethanol. Treatment of N,N...The Co（II） complex I and ammonium salt II were synthesized from the direct reaction of 1,2-ethylenediamine and cobaltous acetate tetrahydrate and manganese acetate tetrahydrate in anhydrous ethanol. Treatment of N,N＇-bis（salicylidene）ethylenediamine with Cu（OAc）2·H2O results in the formation of Cu（II） complex III. C14H37CoNaO8 （I）： triclinic, space group P1, a = 8.6296（12）, b = 12.0291（17）, c = 12.1108（17） A, α = 75.335（2）, β = 69.991（2）, γ = 72.248（2）°, V= 1109.4（3） A3, Z = 2, ρcaloa = 1.342 g/cm3, the final R= 0.0342 for 4817 observed reflections with I 〉 2σ（I） and Rw = 0.1263 for all data. C6H16N204 （II）： space group P1, a = 5.5513（10）, b = 5.5589（11）, c = 7.4437（14） A, α = 94.332（4）, β = 104.497（4）, γ = 103.487（4）°,V= 214.06（7） A3, Z = 1, ρcalcd = 1.398 g/cm3, the final R = 0.0431 for 829 observed reflections with I〉 2σ（I） and Rw = 0.1263 for all data. C14H37CuN40 （III）, space group P21/n, a = 9.050（9）, b = 18.434（17）, c = 11.659（11） A, β = 107.134（19）°, V= 1859（3） A3, Z = 4, ρcalcd =1.443 g/cm3, the final R = 0.0616 for 3308 observed reflections （O 〉 2σ（I）） and Rw = 0.1229 for all data. Their structures were all determined by X-ray diffraction, elemental analysis and IR.展开更多
Thin PVA/manganese acetate composite fibres were prepared by using sol-gel processing and electrospinning technique. After calcinations of the above precursor fibres, Mn3O4 nanoflbres with a diameter of 50-200 nm coul...Thin PVA/manganese acetate composite fibres were prepared by using sol-gel processing and electrospinning technique. After calcinations of the above precursor fibres, Mn3O4 nanoflbres with a diameter of 50-200 nm could be successfully obtained. The fibres were characterized by SEM, FT-IR, XRD. The results showed that the crystalline phase and morphology of nanofibres were largely influenced by the calcination temperature.展开更多
1 Results Free radical reactions have become increasingly important,as well as a very attractive tool,in organic synthesis within the last two decades,due to their powerful,selective,specific,and mild reaction abiliti...1 Results Free radical reactions have become increasingly important,as well as a very attractive tool,in organic synthesis within the last two decades,due to their powerful,selective,specific,and mild reaction abilities.Mn(OAc)3 mediated oxidative free radical reactions have been extensively developed in the last twenty years[1,6].Numerous regio-,chemo-,and stereoselective synthetic methods have been developed in both inter-and intramolecular reactions,and have detailed the progress of Mn(OAc)3 mediated...展开更多
An attempt has been made to prepare terephthalic acid（TPA） by solvent-free oxidation of p-xylene（PX） with air over tetra（pchlorophenylporphinato） manganese chloride（T（p-Cl）PPMnCl） and cobalt acetate.The co-c...An attempt has been made to prepare terephthalic acid（TPA） by solvent-free oxidation of p-xylene（PX） with air over tetra（pchlorophenylporphinato） manganese chloride（T（p-Cl）PPMnCl） and cobalt acetate.The co-catalysis between T（p-Cl）PPMnCl and Co（OAc）_2 has been discovered under solvent-free conditions.TPA yield could be increased significantly when T（p-Cl）PPMnCl and Co（OAc）_2 were used together.The addition of T（p-Cl）PPMnCl into the reaction mixture over Co（OAc）_2 significantly accelerated the rate-determining step of the oxidation process of PX to TPA.The effect of temperature on reaction was also investigated.展开更多
文摘This study involves the aromatization reactions of some ketone derivatives through Manganese (III) acetate. The ketone derivatives used in the study are α-tetralone (1a), 2,4,7-trimethyl-7,8-dihydro quinolinone (1b). At the end of the aromatization reactions of these ketone derivatives the synthesized structures of α-naphthol (2a), 2,4,7-trimethylquinoline-5-ol (2b) were identified by spectroscopic methods such as IR, 1H-NMR, <sup>13</sup>C-NMR, FAB-MS respectively. Micro-organism types such as Escherichia coli, ATCC 25922, Klepsiella pneumoniae, Staphylococcus aureus NRRL B767, Salmonella typhimurium NRRLB 4420, Bacillus subtilis NRS 744, Bacillus cereus ATCC 11778, Micrococcus luteus ATCC-9341, Listeria monoaytopenus ATCC-7644 bacteria and yeast fungus Candida albicans were used to study the anti-microbial properties of the synthesized 2b compound. The obtained results have determined that compound number 2b has a good antibacterial impact on Bacillus subtilis (NRS-744).
文摘The Co（II） complex I and ammonium salt II were synthesized from the direct reaction of 1,2-ethylenediamine and cobaltous acetate tetrahydrate and manganese acetate tetrahydrate in anhydrous ethanol. Treatment of N,N＇-bis（salicylidene）ethylenediamine with Cu（OAc）2·H2O results in the formation of Cu（II） complex III. C14H37CoNaO8 （I）： triclinic, space group P1, a = 8.6296（12）, b = 12.0291（17）, c = 12.1108（17） A, α = 75.335（2）, β = 69.991（2）, γ = 72.248（2）°, V= 1109.4（3） A3, Z = 2, ρcaloa = 1.342 g/cm3, the final R= 0.0342 for 4817 observed reflections with I 〉 2σ（I） and Rw = 0.1263 for all data. C6H16N204 （II）： space group P1, a = 5.5513（10）, b = 5.5589（11）, c = 7.4437（14） A, α = 94.332（4）, β = 104.497（4）, γ = 103.487（4）°,V= 214.06（7） A3, Z = 1, ρcalcd = 1.398 g/cm3, the final R = 0.0431 for 829 observed reflections with I〉 2σ（I） and Rw = 0.1263 for all data. C14H37CuN40 （III）, space group P21/n, a = 9.050（9）, b = 18.434（17）, c = 11.659（11） A, β = 107.134（19）°, V= 1859（3） A3, Z = 4, ρcalcd =1.443 g/cm3, the final R = 0.0616 for 3308 observed reflections （O 〉 2σ（I）） and Rw = 0.1229 for all data. Their structures were all determined by X-ray diffraction, elemental analysis and IR.
文摘Thin PVA/manganese acetate composite fibres were prepared by using sol-gel processing and electrospinning technique. After calcinations of the above precursor fibres, Mn3O4 nanoflbres with a diameter of 50-200 nm could be successfully obtained. The fibres were characterized by SEM, FT-IR, XRD. The results showed that the crystalline phase and morphology of nanofibres were largely influenced by the calcination temperature.
文摘1 Results Free radical reactions have become increasingly important,as well as a very attractive tool,in organic synthesis within the last two decades,due to their powerful,selective,specific,and mild reaction abilities.Mn(OAc)3 mediated oxidative free radical reactions have been extensively developed in the last twenty years[1,6].Numerous regio-,chemo-,and stereoselective synthetic methods have been developed in both inter-and intramolecular reactions,and have detailed the progress of Mn(OAc)3 mediated...
文摘An attempt has been made to prepare terephthalic acid（TPA） by solvent-free oxidation of p-xylene（PX） with air over tetra（pchlorophenylporphinato） manganese chloride（T（p-Cl）PPMnCl） and cobalt acetate.The co-catalysis between T（p-Cl）PPMnCl and Co（OAc）_2 has been discovered under solvent-free conditions.TPA yield could be increased significantly when T（p-Cl）PPMnCl and Co（OAc）_2 were used together.The addition of T（p-Cl）PPMnCl into the reaction mixture over Co（OAc）_2 significantly accelerated the rate-determining step of the oxidation process of PX to TPA.The effect of temperature on reaction was also investigated.
