The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli
N-heterocyclic carbene ligand is used to synthesize palladium(II) complex which involves in Heck reaction as catalyst. In this study, the 1,3-bis[(4- nitrophenyl)methyl]-l-benzimidazolium bromide which is one of N-heterocyclic carbene (NHC) ligand had been successfully synthesized with reaction betw...
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| Format: | Student Project |
| Language: | English |
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Faculty of Applied Sciences
2017
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| Online Access: | https://ir.uitm.edu.my/id/eprint/26805/ |
| _version_ | 1848806608497278976 |
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| author | Rosli, Nur Atikah Syahidah |
| author_facet | Rosli, Nur Atikah Syahidah |
| author_sort | Rosli, Nur Atikah Syahidah |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | N-heterocyclic carbene ligand is used to synthesize palladium(II) complex which involves in Heck reaction as catalyst. In this study, the 1,3-bis[(4- nitrophenyl)methyl]-l-benzimidazolium bromide which is one of N-heterocyclic carbene (NHC) ligand had been successfully synthesized with reaction between benzimidazole and 1,4-nitrobenzyl bromide. The percentage yield of the ligand and complex had been calculated which is 84.21 % and 17.05% respectively. The compound of 1,3-bis[( 4-nitrophenyl)methyl]-1-benzimidazolium bromide and palladium(II)-1 ,3-bis[ ( 4-nitrophenyl)methyl]-1-benzimidazolium bromide complex were characterized by using Fourier Transfer Infrared (FTIR) and Nuclear Magnetic Resonance (NMR). The palladium(Il)-1,3-bis[( 4- nitrophenyl)methyl]-1-benzimidazolium bromide have been used as homogeneous catalyst which improves the catalytic activity in Heck reaction. The catalytic activity of complex was evaluated in Heck reaction. In Heck reaction, the synthesized complex was tested in the reaction between l -bromo-4-nitrobenzene and styrene to produce 3-( 4-nitrophenyl)-benzene. Besides, by using sodium carbonate, Na2CO3 as a base, the effect of the catalyst loading had been studied by changing the percentage of catalyst loading. Also, the reaction that had been monitored every 15 minutes which until 60 minutes is to study the effect of time for the production of product obtained from Gas Chromatography (GC) analysis. Therefore, the optimum condition for catalytic testing is 1.0 mmol%, 46.55 TON and 46.55% conversion rate at 45th minutes. |
| first_indexed | 2025-11-14T22:29:38Z |
| format | Student Project |
| id | uitm-26805 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T22:29:38Z |
| publishDate | 2017 |
| publisher | Faculty of Applied Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-268052019-12-16T08:14:01Z https://ir.uitm.edu.my/id/eprint/26805/ The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli Rosli, Nur Atikah Syahidah QD Chemistry Inorganic chemistry Palladium N-heterocyclic carbene ligand is used to synthesize palladium(II) complex which involves in Heck reaction as catalyst. In this study, the 1,3-bis[(4- nitrophenyl)methyl]-l-benzimidazolium bromide which is one of N-heterocyclic carbene (NHC) ligand had been successfully synthesized with reaction between benzimidazole and 1,4-nitrobenzyl bromide. The percentage yield of the ligand and complex had been calculated which is 84.21 % and 17.05% respectively. The compound of 1,3-bis[( 4-nitrophenyl)methyl]-1-benzimidazolium bromide and palladium(II)-1 ,3-bis[ ( 4-nitrophenyl)methyl]-1-benzimidazolium bromide complex were characterized by using Fourier Transfer Infrared (FTIR) and Nuclear Magnetic Resonance (NMR). The palladium(Il)-1,3-bis[( 4- nitrophenyl)methyl]-1-benzimidazolium bromide have been used as homogeneous catalyst which improves the catalytic activity in Heck reaction. The catalytic activity of complex was evaluated in Heck reaction. In Heck reaction, the synthesized complex was tested in the reaction between l -bromo-4-nitrobenzene and styrene to produce 3-( 4-nitrophenyl)-benzene. Besides, by using sodium carbonate, Na2CO3 as a base, the effect of the catalyst loading had been studied by changing the percentage of catalyst loading. Also, the reaction that had been monitored every 15 minutes which until 60 minutes is to study the effect of time for the production of product obtained from Gas Chromatography (GC) analysis. Therefore, the optimum condition for catalytic testing is 1.0 mmol%, 46.55 TON and 46.55% conversion rate at 45th minutes. Faculty of Applied Sciences 2017 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/26805/1/PPb_NUR%20ATIKAH%20SYAHIDAH%20ROSLI%20AS%20N%2017_5.pdf Rosli, Nur Atikah Syahidah (2017) The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli. (2017) [Student Project] <http://terminalib.uitm.edu.my/26805.pdf> (Unpublished) |
| spellingShingle | QD Chemistry Inorganic chemistry Palladium Rosli, Nur Atikah Syahidah The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli |
| title | The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli |
| title_full | The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli |
| title_fullStr | The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli |
| title_full_unstemmed | The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli |
| title_short | The catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / Nur Atikah Syahidah Rosli |
| title_sort | catalytic activity of palladium(ii)-1,3-bis[(4- nitrophenyl)methyl]-1-benzimidazolium bromide complexes in heck reaction / nur atikah syahidah rosli |
| topic | QD Chemistry Inorganic chemistry Palladium |
| url | https://ir.uitm.edu.my/id/eprint/26805/ |