Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst
The kinetics and mechanism of Ru(III)-catalyzed oxidation of d-arabinose (d-Ara) by N-bromophthalimide (NBP) in a acidic medium were investigated using titrimetric method for the redox reaction in the temperature range of 303–323 K. The reaction was first order with respect to [NBP] and [Ru(III)]. I...
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Elsevier
2017-11-01
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| Series: | Arabian Journal of Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S187853521400183X |
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| author | Neerja Sachdev Ajaya Kumar Singh Alpa Shrivastava Yokraj Katre Aftab Aslam Parwaz Khan |
| author_facet | Neerja Sachdev Ajaya Kumar Singh Alpa Shrivastava Yokraj Katre Aftab Aslam Parwaz Khan |
| author_sort | Neerja Sachdev |
| collection | DOAJ |
| description | The kinetics and mechanism of Ru(III)-catalyzed oxidation of d-arabinose (d-Ara) by N-bromophthalimide (NBP) in a acidic medium were investigated using titrimetric method for the redox reaction in the temperature range of 303–323 K. The reaction was first order with respect to [NBP] and [Ru(III)]. In both cases, the reaction followed identical kinetics with positive fractional order for [d-Ara] and [H+]. Negative effect with increase in [Cl−], [CH3COOH] and [acetonitrile] could also be observed. Erythronic acid and formic acid were identified as main oxidation products of the reaction. Reduced product of the oxidant i.e. phthalimide did not show significant effect on oxidation rate. Various activation parameters have also been evaluated. Finally a plausible mechanism has been proposed from the kinetic results, reaction stoichiometry and product analysis. |
| first_indexed | 2024-12-12T16:43:58Z |
| format | Article |
| id | doaj.art-053b3f8ea89b40c99ad168d348db937b |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-12-12T16:43:58Z |
| publishDate | 2017-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-053b3f8ea89b40c99ad168d348db937b2022-12-22T00:18:30ZengElsevierArabian Journal of Chemistry1878-53522017-11-0110796597410.1016/j.arabjc.2014.08.021Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalystNeerja Sachdev0Ajaya Kumar Singh1Alpa Shrivastava2Yokraj Katre3Aftab Aslam Parwaz Khan4Department of Applied Chemistry, Bhilai School of Engineering, Durg, IndiaDepartment of Chemistry, Govt. V. Y .T. PG. Autonomous College, Durg (C.G.), IndiaDepartment of Applied Chemistry, Shri Shankaracharya Group of Institute, Bhilai, IndiaDepartment of Chemistry, Kalyan Mahavidyalaya, Bhilai Nagar Sect-7, Bhilai, IndiaChemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaThe kinetics and mechanism of Ru(III)-catalyzed oxidation of d-arabinose (d-Ara) by N-bromophthalimide (NBP) in a acidic medium were investigated using titrimetric method for the redox reaction in the temperature range of 303–323 K. The reaction was first order with respect to [NBP] and [Ru(III)]. In both cases, the reaction followed identical kinetics with positive fractional order for [d-Ara] and [H+]. Negative effect with increase in [Cl−], [CH3COOH] and [acetonitrile] could also be observed. Erythronic acid and formic acid were identified as main oxidation products of the reaction. Reduced product of the oxidant i.e. phthalimide did not show significant effect on oxidation rate. Various activation parameters have also been evaluated. Finally a plausible mechanism has been proposed from the kinetic results, reaction stoichiometry and product analysis.http://www.sciencedirect.com/science/article/pii/S187853521400183XKineticsOxidationN-bromophthalimided-ArabinoseRu(III) chloridePhthalimide (NHP) |
| spellingShingle | Neerja Sachdev Ajaya Kumar Singh Alpa Shrivastava Yokraj Katre Aftab Aslam Parwaz Khan Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst Arabian Journal of Chemistry Kinetics Oxidation N-bromophthalimide d-Arabinose Ru(III) chloride Phthalimide (NHP) |
| title | Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst |
| title_full | Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst |
| title_fullStr | Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst |
| title_full_unstemmed | Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst |
| title_short | Mechanistic study of oxidation of d-arabinose by N-bromophthalimide in presence of micro-amount of chloro-complex of Ru(III) as a homogeneous catalyst |
| title_sort | mechanistic study of oxidation of d arabinose by n bromophthalimide in presence of micro amount of chloro complex of ru iii as a homogeneous catalyst |
| topic | Kinetics Oxidation N-bromophthalimide d-Arabinose Ru(III) chloride Phthalimide (NHP) |
| url | http://www.sciencedirect.com/science/article/pii/S187853521400183X |
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