Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography
Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol taut...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Zhao, Yongxin [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2006 |
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| Schlagwörter: |
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| Anmerkung: |
© Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 |
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| Übergeordnetes Werk: |
Enthalten in: Chromatographia - Wiesbaden : Vieweg, 1968, 63(2006), 3-4 vom: 23. Jan., Seite 161-166 |
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| Übergeordnetes Werk: |
volume:63 ; year:2006 ; number:3-4 ; day:23 ; month:01 ; pages:161-166 |
| Links: |
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| DOI / URN: |
10.1365/s10337-005-0710-9 |
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| Katalog-ID: |
SPR009530886 |
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| 041 | |a eng | ||
| 100 | 1 | |a Zhao, Yongxin |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography |
| 264 | 1 | |c 2006 | |
| 336 | |a Text |b txt |2 rdacontent | ||
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| 500 | |a © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 | ||
| 520 | |a Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. | ||
| 650 | 4 | |a Gas chromatography-mass spectrometry |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Kinetics and thermodynamics |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Deuterium-labeling |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Tautomerization |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Methyl 3-oxo pentanoate |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Feng, Jianyue |4 aut | |
| 700 | 1 | |a Chen, Guanxi |4 aut | |
| 700 | 1 | |a Ke, Yingfen |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Chromatographia |d Wiesbaden : Vieweg, 1968 |g 63(2006), 3-4 vom: 23. Jan., Seite 161-166 |w (DE-627)320592219 |w (DE-600)2019091-8 |x 1612-1112 |7 nnns |
| 773 | 1 | 8 | |g volume:63 |g year:2006 |g number:3-4 |g day:23 |g month:01 |g pages:161-166 |
| 856 | 4 | 0 | |u https://dx.doi.org/10.1365/s10337-005-0710-9 |z lizenzpflichtig |3 Volltext |
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| 952 | |d 63 |j 2006 |e 3-4 |b 23 |c 01 |h 161-166 | ||
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10.1365/s10337-005-0710-9 doi (DE-627)SPR009530886 (SPR)s10337-005-0710-9-e DE-627 ger DE-627 rakwb eng Zhao, Yongxin verfasserin aut Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. Gas chromatography-mass spectrometry (dpeaa)DE-He213 Kinetics and thermodynamics (dpeaa)DE-He213 Deuterium-labeling (dpeaa)DE-He213 Tautomerization (dpeaa)DE-He213 Methyl 3-oxo pentanoate (dpeaa)DE-He213 Feng, Jianyue aut Chen, Guanxi aut Ke, Yingfen aut Enthalten in Chromatographia Wiesbaden : Vieweg, 1968 63(2006), 3-4 vom: 23. Jan., Seite 161-166 (DE-627)320592219 (DE-600)2019091-8 1612-1112 nnns volume:63 year:2006 number:3-4 day:23 month:01 pages:161-166 https://dx.doi.org/10.1365/s10337-005-0710-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 63 2006 3-4 23 01 161-166 |
| spelling |
10.1365/s10337-005-0710-9 doi (DE-627)SPR009530886 (SPR)s10337-005-0710-9-e DE-627 ger DE-627 rakwb eng Zhao, Yongxin verfasserin aut Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. Gas chromatography-mass spectrometry (dpeaa)DE-He213 Kinetics and thermodynamics (dpeaa)DE-He213 Deuterium-labeling (dpeaa)DE-He213 Tautomerization (dpeaa)DE-He213 Methyl 3-oxo pentanoate (dpeaa)DE-He213 Feng, Jianyue aut Chen, Guanxi aut Ke, Yingfen aut Enthalten in Chromatographia Wiesbaden : Vieweg, 1968 63(2006), 3-4 vom: 23. Jan., Seite 161-166 (DE-627)320592219 (DE-600)2019091-8 1612-1112 nnns volume:63 year:2006 number:3-4 day:23 month:01 pages:161-166 https://dx.doi.org/10.1365/s10337-005-0710-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 63 2006 3-4 23 01 161-166 |
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10.1365/s10337-005-0710-9 doi (DE-627)SPR009530886 (SPR)s10337-005-0710-9-e DE-627 ger DE-627 rakwb eng Zhao, Yongxin verfasserin aut Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. Gas chromatography-mass spectrometry (dpeaa)DE-He213 Kinetics and thermodynamics (dpeaa)DE-He213 Deuterium-labeling (dpeaa)DE-He213 Tautomerization (dpeaa)DE-He213 Methyl 3-oxo pentanoate (dpeaa)DE-He213 Feng, Jianyue aut Chen, Guanxi aut Ke, Yingfen aut Enthalten in Chromatographia Wiesbaden : Vieweg, 1968 63(2006), 3-4 vom: 23. Jan., Seite 161-166 (DE-627)320592219 (DE-600)2019091-8 1612-1112 nnns volume:63 year:2006 number:3-4 day:23 month:01 pages:161-166 https://dx.doi.org/10.1365/s10337-005-0710-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 63 2006 3-4 23 01 161-166 |
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10.1365/s10337-005-0710-9 doi (DE-627)SPR009530886 (SPR)s10337-005-0710-9-e DE-627 ger DE-627 rakwb eng Zhao, Yongxin verfasserin aut Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. Gas chromatography-mass spectrometry (dpeaa)DE-He213 Kinetics and thermodynamics (dpeaa)DE-He213 Deuterium-labeling (dpeaa)DE-He213 Tautomerization (dpeaa)DE-He213 Methyl 3-oxo pentanoate (dpeaa)DE-He213 Feng, Jianyue aut Chen, Guanxi aut Ke, Yingfen aut Enthalten in Chromatographia Wiesbaden : Vieweg, 1968 63(2006), 3-4 vom: 23. Jan., Seite 161-166 (DE-627)320592219 (DE-600)2019091-8 1612-1112 nnns volume:63 year:2006 number:3-4 day:23 month:01 pages:161-166 https://dx.doi.org/10.1365/s10337-005-0710-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 63 2006 3-4 23 01 161-166 |
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10.1365/s10337-005-0710-9 doi (DE-627)SPR009530886 (SPR)s10337-005-0710-9-e DE-627 ger DE-627 rakwb eng Zhao, Yongxin verfasserin aut Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. Gas chromatography-mass spectrometry (dpeaa)DE-He213 Kinetics and thermodynamics (dpeaa)DE-He213 Deuterium-labeling (dpeaa)DE-He213 Tautomerization (dpeaa)DE-He213 Methyl 3-oxo pentanoate (dpeaa)DE-He213 Feng, Jianyue aut Chen, Guanxi aut Ke, Yingfen aut Enthalten in Chromatographia Wiesbaden : Vieweg, 1968 63(2006), 3-4 vom: 23. Jan., Seite 161-166 (DE-627)320592219 (DE-600)2019091-8 1612-1112 nnns volume:63 year:2006 number:3-4 day:23 month:01 pages:161-166 https://dx.doi.org/10.1365/s10337-005-0710-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 63 2006 3-4 23 01 161-166 |
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Enthalten in Chromatographia 63(2006), 3-4 vom: 23. Jan., Seite 161-166 volume:63 year:2006 number:3-4 day:23 month:01 pages:161-166 |
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Enthalten in Chromatographia 63(2006), 3-4 vom: 23. Jan., Seite 161-166 volume:63 year:2006 number:3-4 day:23 month:01 pages:161-166 |
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Gas chromatography-mass spectrometry Kinetics and thermodynamics Deuterium-labeling Tautomerization Methyl 3-oxo pentanoate |
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Chromatographia |
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Zhao, Yongxin @@aut@@ Feng, Jianyue @@aut@@ Chen, Guanxi @@aut@@ Ke, Yingfen @@aut@@ |
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2006-01-23T00:00:00Z |
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Zhao, Yongxin |
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Zhao, Yongxin misc Gas chromatography-mass spectrometry misc Kinetics and thermodynamics misc Deuterium-labeling misc Tautomerization misc Methyl 3-oxo pentanoate Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography |
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Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography Gas chromatography-mass spectrometry (dpeaa)DE-He213 Kinetics and thermodynamics (dpeaa)DE-He213 Deuterium-labeling (dpeaa)DE-He213 Tautomerization (dpeaa)DE-He213 Methyl 3-oxo pentanoate (dpeaa)DE-He213 |
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misc Gas chromatography-mass spectrometry misc Kinetics and thermodynamics misc Deuterium-labeling misc Tautomerization misc Methyl 3-oxo pentanoate |
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misc Gas chromatography-mass spectrometry misc Kinetics and thermodynamics misc Deuterium-labeling misc Tautomerization misc Methyl 3-oxo pentanoate |
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Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography |
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Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography |
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Zhao, Yongxin Feng, Jianyue Chen, Guanxi Ke, Yingfen |
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study on the tautomer interconversion of 3-oxo pentanoate during gas chromatography |
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Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography |
| abstract |
Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 |
| abstractGer |
Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 |
| abstract_unstemmed |
Abstract Enol and keto tautomers of methyl 3-oxo pentanoate could be separated on a HP-5 capillary column. The chromatographic peaks were identified by examining characteristic mass ions arose from the corresponding enol and keto molecular ions. The study showed that the area percentage of enol tautomer is a function of temperature of the column. Treating the column as a reactor, the energy of activation for the on-column tautomerization could be extracted (35.1 kJ $ mol^{−1} $) by monitoring the loss of the enol tautomer, because the reaction is found to obey pseudo first-order kinetics. The enthalpy and the entropy changes (ΔH = −3.98 kJ $ mol^{−1} $, ΔS = −7.89 J $ K^{−1} %$ mol^{−1} $) for the enol-to-keto reaction in the stationary phase were also obtained. © Friedr. Vieweg & Sohn/GWV Fachverlage GmbH 2006 |
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| title_short |
Study on the Tautomer Interconversion of 3-Oxo Pentanoate During Gas Chromatography |
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https://dx.doi.org/10.1365/s10337-005-0710-9 |
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Feng, Jianyue Chen, Guanxi Ke, Yingfen |
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| doi_str |
10.1365/s10337-005-0710-9 |
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2024-07-04T02:25:03.685Z |
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| score |
7.4005814 |