Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry
The gas-liquid-chromatographic retention-times and the mass-spectral features of partially methylated d-galactononitrile acetates are reported. Distinctive fragmentation of each of the mono-O-methyl derivatives allows their identification, and the results are applicable to the same substituted deriv...
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Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00086215_v111_n1_p31_Stortz |
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todo:paper_00086215_v111_n1_p31_Stortz2023-10-03T14:06:15Z Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry Stortz, C.A. Matulewicz, M.C. Cerezo, A.S. The gas-liquid-chromatographic retention-times and the mass-spectral features of partially methylated d-galactononitrile acetates are reported. Distinctive fragmentation of each of the mono-O-methyl derivatives allows their identification, and the results are applicable to the same substituted derivatives of the other aldohexoses. A new fragmentation-pathway, typical of the acetylated and the O-acetyl-O-methylaldononitriles, is proposed in order to justify previously unexplained fragments. This fragmentation competes with the known ones in derivatives that do not carry vicinal methoxyl groups. © 1982. Fil:Stortz, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Matulewicz, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cerezo, A.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00086215_v111_n1_p31_Stortz |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
description |
The gas-liquid-chromatographic retention-times and the mass-spectral features of partially methylated d-galactononitrile acetates are reported. Distinctive fragmentation of each of the mono-O-methyl derivatives allows their identification, and the results are applicable to the same substituted derivatives of the other aldohexoses. A new fragmentation-pathway, typical of the acetylated and the O-acetyl-O-methylaldononitriles, is proposed in order to justify previously unexplained fragments. This fragmentation competes with the known ones in derivatives that do not carry vicinal methoxyl groups. © 1982. |
format |
JOUR |
author |
Stortz, C.A. Matulewicz, M.C. Cerezo, A.S. |
spellingShingle |
Stortz, C.A. Matulewicz, M.C. Cerezo, A.S. Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry |
author_facet |
Stortz, C.A. Matulewicz, M.C. Cerezo, A.S. |
author_sort |
Stortz, C.A. |
title |
Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry |
title_short |
Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry |
title_full |
Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry |
title_fullStr |
Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry |
title_full_unstemmed |
Separation and identification of O-acetyl-O-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry |
title_sort |
separation and identification of o-acetyl-o-methyl-galactononitriles by gas-liquid chromatography and mass spectrometry |
url |
http://hdl.handle.net/20.500.12110/paper_00086215_v111_n1_p31_Stortz |
work_keys_str_mv |
AT stortzca separationandidentificationofoacetylomethylgalactononitrilesbygasliquidchromatographyandmassspectrometry AT matulewiczmc separationandidentificationofoacetylomethylgalactononitrilesbygasliquidchromatographyandmassspectrometry AT cerezoas separationandidentificationofoacetylomethylgalactononitrilesbygasliquidchromatographyandmassspectrometry |
_version_ |
1782026105139494912 |