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Valiollah Mirkhani - One of the best experts on this subject based on the ideXlab platform.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
ChemInform, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:An efficient and mild method for the synthesis of the 2-arylated and 2-alkylated imidazoles (II) including an easy work-up is developed.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
Bioorganic & Medicinal Chemistry Letters, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:Abstract In the present work, dehydrogenation of 2-substituted imidazolines with Sodium Periodate in the presence of tetraphenylporphyrinatomanganese(III) chloride, [Mn(TPP)Cl], is reported. A wide variety of 2-imidazolines efficiently converted to their corresponding imidazoles by [Mn(TPP)Cl]/NaIO 4 catalytic system at room temperature in 1:2, CH 3 CN/H 2 O mixture. The effect of reaction parameters such as kind of solvent and catalyst amount was also investigated.
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polystyrene bound mn t4pyp a highly efficient and reusable catalyst for biomimetic oxidative decarboxylation of carboxylic acids with Sodium Periodate
Bioorganic & Medicinal Chemistry, 2009Co-Authors: Majid Moghadam, Valiollah Mirkhani, Shahram Tangestaninejad, Iraj Mohammadpoorbaltork, Narges Sirjanian, Somayeh ParandAbstract:In this report, highly efficient oxidative decarboxylation of carboxylic acids with Sodium Periodate catalyzed by a supported manganese(III) porphyrin is described. In the presence of manganese(III) tetra(4-pyridyl)porphyrin supported on cross-linked chloromethylated polystyrene, [Mn(T4PyP)-CMP], as catalyst, carboxylic acids were converted to their corresponding carbonyl compounds via oxidative decarboxylation with Sodium Periodate using imidazole as axial ligand. The oxidation of anti-inflammatory drugs such Indomethacin and Ibuprofen was carried out successfully and the decarboxylated products were obtained. This catalyst can be reused several times without loss of its catalytic activity in the oxidation reactions.
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diatomite supported manganese schiff base an efficient catalyst for oxidation of hydrocarbons
Applied Catalysis A-general, 2008Co-Authors: Bahram Bahramian, Faramarz Doulati Ardejani, Valiollah Mirkhani, Khashayar BadiiAbstract:Abstract The manganese(III)-salophen complex has been successfully immobilized for the first time on natural diatomite by a simple procedure. This catalyst was characterized by FT-IR, UV–vis, SEM and elemental analysis. The new catalytic material has been evaluated as oxidation catalyst. Our results show that these composite exhibit significant catalytic activities for alkene epoxidation and alkane hydroxylation using Sodium Periodate as oxidant.
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biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate catalyzed by mn iii salen supported on amberlite ira 200
Monatshefte Fur Chemie, 2007Co-Authors: Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Bahram BahramianAbstract:The Mn(III)-salen, containing phosphonium groups at the 5,5′-positions of the salen ligand supported on Amberlite IRA-200 via electrostatic binding was used for the oxidation of alkenes and alkanes with Sodium Periodate at room temperature in the presence of imidazoles as axial ligands, and the effect of solvent, different axial ligands, and various oxygen donors was investigated. This heterogenized catalyst shows high catalytic activity in alkene epoxidation and alkane hydroxylation. It showed high selectivity in the epoxidation of stilbenes, α-pinene, and (R)-(+)-limonene, and exhibits a particular ability to epoxidize linear alkenes. The stability and reusability of this new heterogenized metallo-salen complex was also investigated. The catalyst was characterized by FTIR, UV-Vis, SEM, and thermal analysis.
Majid Moghadam - One of the best experts on this subject based on the ideXlab platform.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
ChemInform, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:An efficient and mild method for the synthesis of the 2-arylated and 2-alkylated imidazoles (II) including an easy work-up is developed.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
Bioorganic & Medicinal Chemistry Letters, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:Abstract In the present work, dehydrogenation of 2-substituted imidazolines with Sodium Periodate in the presence of tetraphenylporphyrinatomanganese(III) chloride, [Mn(TPP)Cl], is reported. A wide variety of 2-imidazolines efficiently converted to their corresponding imidazoles by [Mn(TPP)Cl]/NaIO 4 catalytic system at room temperature in 1:2, CH 3 CN/H 2 O mixture. The effect of reaction parameters such as kind of solvent and catalyst amount was also investigated.
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polystyrene bound mn t4pyp a highly efficient and reusable catalyst for biomimetic oxidative decarboxylation of carboxylic acids with Sodium Periodate
Bioorganic & Medicinal Chemistry, 2009Co-Authors: Majid Moghadam, Valiollah Mirkhani, Shahram Tangestaninejad, Iraj Mohammadpoorbaltork, Narges Sirjanian, Somayeh ParandAbstract:In this report, highly efficient oxidative decarboxylation of carboxylic acids with Sodium Periodate catalyzed by a supported manganese(III) porphyrin is described. In the presence of manganese(III) tetra(4-pyridyl)porphyrin supported on cross-linked chloromethylated polystyrene, [Mn(T4PyP)-CMP], as catalyst, carboxylic acids were converted to their corresponding carbonyl compounds via oxidative decarboxylation with Sodium Periodate using imidazole as axial ligand. The oxidation of anti-inflammatory drugs such Indomethacin and Ibuprofen was carried out successfully and the decarboxylated products were obtained. This catalyst can be reused several times without loss of its catalytic activity in the oxidation reactions.
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biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate catalyzed by mn iii salen supported on amberlite ira 200
Monatshefte Fur Chemie, 2007Co-Authors: Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Bahram BahramianAbstract:The Mn(III)-salen, containing phosphonium groups at the 5,5′-positions of the salen ligand supported on Amberlite IRA-200 via electrostatic binding was used for the oxidation of alkenes and alkanes with Sodium Periodate at room temperature in the presence of imidazoles as axial ligands, and the effect of solvent, different axial ligands, and various oxygen donors was investigated. This heterogenized catalyst shows high catalytic activity in alkene epoxidation and alkane hydroxylation. It showed high selectivity in the epoxidation of stilbenes, α-pinene, and (R)-(+)-limonene, and exhibits a particular ability to epoxidize linear alkenes. The stability and reusability of this new heterogenized metallo-salen complex was also investigated. The catalyst was characterized by FTIR, UV-Vis, SEM, and thermal analysis.
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host nanocavity of zeolite y guest manganese iii salophen complex nanocomposite materials an efficient catalyst for biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate
Applied Catalysis A-general, 2007Co-Authors: Valiollah Mirkhani, Bahram Bahramian, Shahram Tangestaninejad, Majid Moghadam, Akbar MallekpoorshalamzariAbstract:Abstract Efficient biomimetic epoxidation of alkenes and hydroxylation of alkanes with Sodium Periodate catalyzed by zeolite-encapsulated Mn(III)-salophen, ZEMS, is reported. This catalytic system shows a good activity in the epoxidation of linear alkenes. Alkyl aromatic and cycloalkanes were oxidized efficiently to their corresponding alcohols and ketones in the presence of this catalyst. This heterogenized catalyst, ZEMS, has been characterized by FT-IR, UV–vis spectroscopic techniques, SEM, thermal and elemental analysis.
Shahram Tangestaninejad - One of the best experts on this subject based on the ideXlab platform.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
ChemInform, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:An efficient and mild method for the synthesis of the 2-arylated and 2-alkylated imidazoles (II) including an easy work-up is developed.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
Bioorganic & Medicinal Chemistry Letters, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:Abstract In the present work, dehydrogenation of 2-substituted imidazolines with Sodium Periodate in the presence of tetraphenylporphyrinatomanganese(III) chloride, [Mn(TPP)Cl], is reported. A wide variety of 2-imidazolines efficiently converted to their corresponding imidazoles by [Mn(TPP)Cl]/NaIO 4 catalytic system at room temperature in 1:2, CH 3 CN/H 2 O mixture. The effect of reaction parameters such as kind of solvent and catalyst amount was also investigated.
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polystyrene bound mn t4pyp a highly efficient and reusable catalyst for biomimetic oxidative decarboxylation of carboxylic acids with Sodium Periodate
Bioorganic & Medicinal Chemistry, 2009Co-Authors: Majid Moghadam, Valiollah Mirkhani, Shahram Tangestaninejad, Iraj Mohammadpoorbaltork, Narges Sirjanian, Somayeh ParandAbstract:In this report, highly efficient oxidative decarboxylation of carboxylic acids with Sodium Periodate catalyzed by a supported manganese(III) porphyrin is described. In the presence of manganese(III) tetra(4-pyridyl)porphyrin supported on cross-linked chloromethylated polystyrene, [Mn(T4PyP)-CMP], as catalyst, carboxylic acids were converted to their corresponding carbonyl compounds via oxidative decarboxylation with Sodium Periodate using imidazole as axial ligand. The oxidation of anti-inflammatory drugs such Indomethacin and Ibuprofen was carried out successfully and the decarboxylated products were obtained. This catalyst can be reused several times without loss of its catalytic activity in the oxidation reactions.
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biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate catalyzed by mn iii salen supported on amberlite ira 200
Monatshefte Fur Chemie, 2007Co-Authors: Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Bahram BahramianAbstract:The Mn(III)-salen, containing phosphonium groups at the 5,5′-positions of the salen ligand supported on Amberlite IRA-200 via electrostatic binding was used for the oxidation of alkenes and alkanes with Sodium Periodate at room temperature in the presence of imidazoles as axial ligands, and the effect of solvent, different axial ligands, and various oxygen donors was investigated. This heterogenized catalyst shows high catalytic activity in alkene epoxidation and alkane hydroxylation. It showed high selectivity in the epoxidation of stilbenes, α-pinene, and (R)-(+)-limonene, and exhibits a particular ability to epoxidize linear alkenes. The stability and reusability of this new heterogenized metallo-salen complex was also investigated. The catalyst was characterized by FTIR, UV-Vis, SEM, and thermal analysis.
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host nanocavity of zeolite y guest manganese iii salophen complex nanocomposite materials an efficient catalyst for biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate
Applied Catalysis A-general, 2007Co-Authors: Valiollah Mirkhani, Bahram Bahramian, Shahram Tangestaninejad, Majid Moghadam, Akbar MallekpoorshalamzariAbstract:Abstract Efficient biomimetic epoxidation of alkenes and hydroxylation of alkanes with Sodium Periodate catalyzed by zeolite-encapsulated Mn(III)-salophen, ZEMS, is reported. This catalytic system shows a good activity in the epoxidation of linear alkenes. Alkyl aromatic and cycloalkanes were oxidized efficiently to their corresponding alcohols and ketones in the presence of this catalyst. This heterogenized catalyst, ZEMS, has been characterized by FT-IR, UV–vis spectroscopic techniques, SEM, thermal and elemental analysis.
Bahram Bahramian - One of the best experts on this subject based on the ideXlab platform.
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diatomite supported manganese schiff base an efficient catalyst for oxidation of hydrocarbons
Applied Catalysis A-general, 2008Co-Authors: Bahram Bahramian, Faramarz Doulati Ardejani, Valiollah Mirkhani, Khashayar BadiiAbstract:Abstract The manganese(III)-salophen complex has been successfully immobilized for the first time on natural diatomite by a simple procedure. This catalyst was characterized by FT-IR, UV–vis, SEM and elemental analysis. The new catalytic material has been evaluated as oxidation catalyst. Our results show that these composite exhibit significant catalytic activities for alkene epoxidation and alkane hydroxylation using Sodium Periodate as oxidant.
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biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate catalyzed by mn iii salen supported on amberlite ira 200
Monatshefte Fur Chemie, 2007Co-Authors: Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Bahram BahramianAbstract:The Mn(III)-salen, containing phosphonium groups at the 5,5′-positions of the salen ligand supported on Amberlite IRA-200 via electrostatic binding was used for the oxidation of alkenes and alkanes with Sodium Periodate at room temperature in the presence of imidazoles as axial ligands, and the effect of solvent, different axial ligands, and various oxygen donors was investigated. This heterogenized catalyst shows high catalytic activity in alkene epoxidation and alkane hydroxylation. It showed high selectivity in the epoxidation of stilbenes, α-pinene, and (R)-(+)-limonene, and exhibits a particular ability to epoxidize linear alkenes. The stability and reusability of this new heterogenized metallo-salen complex was also investigated. The catalyst was characterized by FTIR, UV-Vis, SEM, and thermal analysis.
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host nanocavity of zeolite y guest manganese iii salophen complex nanocomposite materials an efficient catalyst for biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate
Applied Catalysis A-general, 2007Co-Authors: Valiollah Mirkhani, Bahram Bahramian, Shahram Tangestaninejad, Majid Moghadam, Akbar MallekpoorshalamzariAbstract:Abstract Efficient biomimetic epoxidation of alkenes and hydroxylation of alkanes with Sodium Periodate catalyzed by zeolite-encapsulated Mn(III)-salophen, ZEMS, is reported. This catalytic system shows a good activity in the epoxidation of linear alkenes. Alkyl aromatic and cycloalkanes were oxidized efficiently to their corresponding alcohols and ketones in the presence of this catalyst. This heterogenized catalyst, ZEMS, has been characterized by FT-IR, UV–vis spectroscopic techniques, SEM, thermal and elemental analysis.
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polystyrene bound 1 4 phenylenediamine as a heterogeneous axial ligand for mn salophen cl and its use as biomimetic alkene epoxidation and alkane hydroxylation catalyst with Sodium Periodate
Polyhedron, 2006Co-Authors: Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Bahram BahramianAbstract:Abstract In the present work, Mn(III) salophen has been successfully bonded to 1,4-phenylenediamine modified polystyrene, PSP. Polystyrene-bound 1,4-phenylenediamine is a heterogeneous axial ligand and a support for immobilization of Mn(III) salophen. Mn(salophen)Cl-PSP catalyzes alkene epoxidation with Sodium Periodate under agitation with magnetic stirring. This catalytic system shows a good activity in the epoxidation of linear alkenes. Alkyl aromatic and cycloalkanes were oxidized efficiently to their corresponding alcohols and ketones in the presence of this catalyst. This new heterogeneous catalyst is of high stability and reusability in the oxidation reactions and can be reused several times without loss of its activity. The effect of reaction parameters such as solvent and oxidant in the epoxidation of cis -cyclooctene were investigated. The heterogeneous catalyst Mn(salophen)Cl-PSP has been characterized by FT-IR, UV–Vis spectroscopic techniques, thermal and elemental analysis.
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polystyrene bound imidazole as a heterogeneous axial ligand for mn salophen cl and its use as biomimetic alkene epoxidation and alkane hydroxylation catalyst with Sodium Periodate
Applied Catalysis A-general, 2006Co-Authors: Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Bahram BahramianAbstract:Abstract In the present work, an account of biomimetic oxidation, Mn(III) salophen has been successfully bonded to imidazole modified polystyrene. Polystyrene-bound imidazole, (PSI), is not only a heterogeneous axial base but also is a support for immobilization of Mn(III) salophen. Mn(salophen)Cl-PSI catalyze alkene epoxidation with Sodium Periodate under agitation with magnetic stirring. Alkyl aromatic and cycloalkanes were oxidized efficiently to their corresponding alcohols and ketones in the presence of this catalyst. This new heterogenized catalyst is of high stability and reusability in the oxidation reactions. This heterogenized system showed the higher selectivity and stability in comparison with the homogeneous system, Mn(salophen)Cl. The catalyst, Mn(salophen)Cl-PSI, has been characterized by FT-IR, UV–vis spectroscopic techniques, SEM, thermal and elemental analysis. The effect of reaction parameters such as solvent and oxidant in the epoxidation of cis -cyclooctene were also investigated.
Hadi Kargar - One of the best experts on this subject based on the ideXlab platform.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
ChemInform, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:An efficient and mild method for the synthesis of the 2-arylated and 2-alkylated imidazoles (II) including an easy work-up is developed.
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dehydrogenation of 2 imidazolines with Sodium Periodate catalyzed by manganese iii tetraphenylporphyrin
Bioorganic & Medicinal Chemistry Letters, 2011Co-Authors: Hadi Kargar, Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Iraj Mohammadpoorbaltork, Iman NameniAbstract:Abstract In the present work, dehydrogenation of 2-substituted imidazolines with Sodium Periodate in the presence of tetraphenylporphyrinatomanganese(III) chloride, [Mn(TPP)Cl], is reported. A wide variety of 2-imidazolines efficiently converted to their corresponding imidazoles by [Mn(TPP)Cl]/NaIO 4 catalytic system at room temperature in 1:2, CH 3 CN/H 2 O mixture. The effect of reaction parameters such as kind of solvent and catalyst amount was also investigated.
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mn br8tpp cl supported on polystyrene bound imidazole an efficient and reusable catalyst for biomimetic alkene epoxidation and alkane hydroxylation with Sodium Periodate under various reaction conditions
Applied Catalysis A-general, 2006Co-Authors: Valiollah Mirkhani, Shahram Tangestaninejad, Majid Moghadam, Hadi KargarAbstract:Abstract In the present work, an account of biomimetic oxidation, Mn(Br 8 TPP)Cl has been successfully bonded to imidazole modified polystyrene. Polystyrene-bound imidazole (PSI) is not only a heterogeneous axial base but also is a support for immobilization of Mn(Br 8 TPP)Cl. Mn(Br 8 TPP)Cl-PSI catalyzes alkene epoxidation with Sodium Periodate under agitation with magnetic stirring. Alkylaromatics and cycloalkanes were oxidized efficiently to their corresponding alcohols and ketones in the presence of this catalyst. Ultrasonic irradiation enhanced the catalytic activity of this catalyst in alkene epoxidation and alkane hydroxylation and this led to shorter reaction times and higher product yields. This new heterogenized catalyst is of high stability and reusability in the oxidation reactions.
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mild and efficient oxidation of alcohols with Sodium Periodate catalyzed by polystyrene bound mn iii porphyrin
Bioorganic & Medicinal Chemistry, 2005Co-Authors: Majid Moghadam, Valiollah Mirkhani, Shahram Tangestaninejad, Iraj Mohammadpoorbaltork, Hadi KargarAbstract:Mild and efficient oxidation of primary and secondary alcohols with Sodium Periodate catalyzed by Mn(TPyP), [manganese(III)tetra(4-pyridyl)porphyrin], supported on chloromethylated polystyrene, [Mn(TPyP)-CMP], at room temperature were reported. This catalyst can be reused consecutively four times in the oxidation of 4-chlorobenzyl alcohol in 97% yield without significant loss of its activity.
