Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resins
The immobilization of methyltrioxorhenium (MTO) on vinylpyridine based resins synthesized by several procedures was investigated. Catalysts were characterized by IR and UV-VIS spectroscopy. Nitrogen and rhenium contents were determined by ICP-MS. The presence of ReO3 and ReO groups in the heterogen...
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| Format: | Article |
| Language: | English |
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Universidad de Antioquia
2004-11-01
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| Series: | Revista Facultad de Ingeniería Universidad de Antioquia |
| Subjects: | |
| Online Access: | https://revistas.udea.edu.co/index.php/ingenieria/article/view/344340 |
| _version_ | 1797861570524479488 |
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| author | Lina María González R. Aída Luz Villa de P. Georges Gelbard Consuelo Montes de C. |
| author_facet | Lina María González R. Aída Luz Villa de P. Georges Gelbard Consuelo Montes de C. |
| author_sort | Lina María González R. |
| collection | DOAJ |
| description |
The immobilization of methyltrioxorhenium (MTO) on vinylpyridine based resins synthesized by several procedures was investigated. Catalysts were characterized by IR and UV-VIS spectroscopy. Nitrogen and rhenium contents were determined by ICP-MS. The presence of ReO3 and ReO groups in the heterogenized catalysts was determined by FTIR analysis. New bands were observed in the UV-VIS spectra after treating the supports with MTO. The efficiency of incorporation of Rhenium was higher on PVP and CpPVP copolymers, and support oxidation decreased MTO incorporation on the support. Catalysts were tested for α-pinene oxidation with hydrogen peroxide. Low á-pinene (7%) conversions were obtained over PVP supported catalysts but, epoxide selectivity was high (92%). The highest á-pinene conversion, 50%, was obtained over MTO supported on copolymerized and oxidized supports. Epoxide rearrangement products, campholenic aldehyde and sobrerol, were the main products obtained with MeCN/DCM as solvent. In general, the oxidant efficiency was low, and it was favored in terbutanol and ethyl acetate as solvents.
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| first_indexed | 2024-04-09T22:06:21Z |
| format | Article |
| id | doaj.art-a67edcbc05294918bf3f35c85c1f6471 |
| institution | Directory Open Access Journal |
| issn | 0120-6230 2422-2844 |
| language | English |
| last_indexed | 2024-04-09T22:06:21Z |
| publishDate | 2004-11-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Revista Facultad de Ingeniería Universidad de Antioquia |
| spelling | doaj.art-a67edcbc05294918bf3f35c85c1f64712023-03-23T12:38:50ZengUniversidad de AntioquiaRevista Facultad de Ingeniería Universidad de Antioquia0120-62302422-28442004-11-013210.17533/udea.redin.344340Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resinsLina María González R.0Aída Luz Villa de P.1Georges Gelbard2Consuelo Montes de C.3Universidad de AntioquiaUniversidad de AntioquiaInstitut de Recherches sur la Catalyse Universidad de Antioquia The immobilization of methyltrioxorhenium (MTO) on vinylpyridine based resins synthesized by several procedures was investigated. Catalysts were characterized by IR and UV-VIS spectroscopy. Nitrogen and rhenium contents were determined by ICP-MS. The presence of ReO3 and ReO groups in the heterogenized catalysts was determined by FTIR analysis. New bands were observed in the UV-VIS spectra after treating the supports with MTO. The efficiency of incorporation of Rhenium was higher on PVP and CpPVP copolymers, and support oxidation decreased MTO incorporation on the support. Catalysts were tested for α-pinene oxidation with hydrogen peroxide. Low á-pinene (7%) conversions were obtained over PVP supported catalysts but, epoxide selectivity was high (92%). The highest á-pinene conversion, 50%, was obtained over MTO supported on copolymerized and oxidized supports. Epoxide rearrangement products, campholenic aldehyde and sobrerol, were the main products obtained with MeCN/DCM as solvent. In general, the oxidant efficiency was low, and it was favored in terbutanol and ethyl acetate as solvents. https://revistas.udea.edu.co/index.php/ingenieria/article/view/344340methyltrioxorheniumpolyvinylpyridineheterogenizationα-pinenecatalytic oxidationhydrogen peroxide |
| spellingShingle | Lina María González R. Aída Luz Villa de P. Georges Gelbard Consuelo Montes de C. Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resins Revista Facultad de Ingeniería Universidad de Antioquia methyltrioxorhenium polyvinylpyridine heterogenization α-pinene catalytic oxidation hydrogen peroxide |
| title | Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resins |
| title_full | Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resins |
| title_fullStr | Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resins |
| title_full_unstemmed | Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resins |
| title_short | Catalytic oxidation of α-pinene with methyltrioxorhenium immobilized onto polymeric resins |
| title_sort | catalytic oxidation of α pinene with methyltrioxorhenium immobilized onto polymeric resins |
| topic | methyltrioxorhenium polyvinylpyridine heterogenization α-pinene catalytic oxidation hydrogen peroxide |
| url | https://revistas.udea.edu.co/index.php/ingenieria/article/view/344340 |
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