Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies

Autores
Cerecetto, Hugo; González, Mercedes; Seoane, Gustavo; Stanko, Carola; Piro, Oscar Enrique; Castellano, Eduardo Ernesto
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper reported on the study of fragmentation pattern in mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives involving deuterium-labeled analogues to identify some critical fragmentations. A neutral CH2O loss from 3-hydroxymethyl-N2-oxide-4-phenyl-1,2,5-oxadiazole was confirmed with the corresponding mono-deuterated analogue. An OH loss, involving the oxygen of N-oxide, via β-H and δ-H rearrangement, was clearly revealed from 3-(4-methylpiperazine-1-ylmethyl)-N2-oxide-4-phenyl-1, 2,5-oxadiazole using the adequate tetra-deuterated analogue. N-oxide isomer and deoxygenated analogues were also used to confirm the participation of the oxide moiety in the fragmentation process.
Reportamos neste trabalho o estudo sistemático de fragmentação dos derivados de N-óxidos de 1,2,5-oxadiazóis por espectroscopia de massa, usando análogos marcados com deutério para identificar algumas fragmentações críticas. Foi confirmada a perda neutra de CH2O a partir do N2-óxido de 3- hidroximetil-4-fenil-1,2,5-oxidiazol, usando o análogo mono-deuterado. A perda de OH, a partir do oxigênio do N-óxido, por um rearranjo β-H e δ-H, foi claramente verificada a partir do N2-óxido de 3-(4-metilpiperazina-1-metil)-4-fenil-1,2,5-oxidiazol, usando-se o analogo tetra-deuterado adequado. O isômero N-óxido e análogos desoxigenados foram também usados para confirmar a participação do fragmento óxido no processo de defragmentação.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
1,2,5-oxadiazole N-oxide
D-labeled furoxan
EI/MS
Mass fragmentation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/84487

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spelling Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studiesCerecetto, HugoGonzález, MercedesSeoane, GustavoStanko, CarolaPiro, Oscar EnriqueCastellano, Eduardo ErnestoCiencias Exactas1,2,5-oxadiazole N-oxideD-labeled furoxanEI/MSMass fragmentationThis paper reported on the study of fragmentation pattern in mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives involving deuterium-labeled analogues to identify some critical fragmentations. A neutral CH<SUB>2</SUB>O loss from 3-hydroxymethyl-N<SUB>2</SUB>-oxide-4-phenyl-1,2,5-oxadiazole was confirmed with the corresponding mono-deuterated analogue. An OH loss, involving the oxygen of N-oxide, via β-H and δ-H rearrangement, was clearly revealed from 3-(4-methylpiperazine-1-ylmethyl)-N<SUB>2</SUB>-oxide-4-phenyl-1, 2,5-oxadiazole using the adequate tetra-deuterated analogue. N-oxide isomer and deoxygenated analogues were also used to confirm the participation of the oxide moiety in the fragmentation process.Reportamos neste trabalho o estudo sistemático de fragmentação dos derivados de N-óxidos de 1,2,5-oxadiazóis por espectroscopia de massa, usando análogos marcados com deutério para identificar algumas fragmentações críticas. Foi confirmada a perda neutra de CH<SUB>2</SUB>O a partir do N<SUB>2</SUB>-óxido de 3- hidroximetil-4-fenil-1,2,5-oxidiazol, usando o análogo mono-deuterado. A perda de OH, a partir do oxigênio do N-óxido, por um rearranjo β-H e δ-H, foi claramente verificada a partir do N<SUB>2</SUB>-óxido de 3-(4-metilpiperazina-1-metil)-4-fenil-1,2,5-oxidiazol, usando-se o analogo tetra-deuterado adequado. O isômero N-óxido e análogos desoxigenados foram também usados para confirmar a participação do fragmento óxido no processo de defragmentação.Facultad de Ciencias Exactas2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf232-240http://sedici.unlp.edu.ar/handle/10915/84487enginfo:eu-repo/semantics/altIdentifier/issn/0103-5053info:eu-repo/semantics/altIdentifier/doi/10.1590/S0103-50532004000200012info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-10T12:18:54Zoai:sedici.unlp.edu.ar:10915/84487Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-10 12:18:55.071SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
title Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
spellingShingle Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
Cerecetto, Hugo
Ciencias Exactas
1,2,5-oxadiazole N-oxide
D-labeled furoxan
EI/MS
Mass fragmentation
title_short Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
title_full Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
title_fullStr Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
title_full_unstemmed Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
title_sort Mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives. Use of deuterated analogues in fragmentation pattern studies
dc.creator.none.fl_str_mv Cerecetto, Hugo
González, Mercedes
Seoane, Gustavo
Stanko, Carola
Piro, Oscar Enrique
Castellano, Eduardo Ernesto
author Cerecetto, Hugo
author_facet Cerecetto, Hugo
González, Mercedes
Seoane, Gustavo
Stanko, Carola
Piro, Oscar Enrique
Castellano, Eduardo Ernesto
author_role author
author2 González, Mercedes
Seoane, Gustavo
Stanko, Carola
Piro, Oscar Enrique
Castellano, Eduardo Ernesto
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
1,2,5-oxadiazole N-oxide
D-labeled furoxan
EI/MS
Mass fragmentation
topic Ciencias Exactas
1,2,5-oxadiazole N-oxide
D-labeled furoxan
EI/MS
Mass fragmentation
dc.description.none.fl_txt_mv This paper reported on the study of fragmentation pattern in mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives involving deuterium-labeled analogues to identify some critical fragmentations. A neutral CH<SUB>2</SUB>O loss from 3-hydroxymethyl-N<SUB>2</SUB>-oxide-4-phenyl-1,2,5-oxadiazole was confirmed with the corresponding mono-deuterated analogue. An OH loss, involving the oxygen of N-oxide, via β-H and δ-H rearrangement, was clearly revealed from 3-(4-methylpiperazine-1-ylmethyl)-N<SUB>2</SUB>-oxide-4-phenyl-1, 2,5-oxadiazole using the adequate tetra-deuterated analogue. N-oxide isomer and deoxygenated analogues were also used to confirm the participation of the oxide moiety in the fragmentation process.
Reportamos neste trabalho o estudo sistemático de fragmentação dos derivados de N-óxidos de 1,2,5-oxadiazóis por espectroscopia de massa, usando análogos marcados com deutério para identificar algumas fragmentações críticas. Foi confirmada a perda neutra de CH<SUB>2</SUB>O a partir do N<SUB>2</SUB>-óxido de 3- hidroximetil-4-fenil-1,2,5-oxidiazol, usando o análogo mono-deuterado. A perda de OH, a partir do oxigênio do N-óxido, por um rearranjo β-H e δ-H, foi claramente verificada a partir do N<SUB>2</SUB>-óxido de 3-(4-metilpiperazina-1-metil)-4-fenil-1,2,5-oxidiazol, usando-se o analogo tetra-deuterado adequado. O isômero N-óxido e análogos desoxigenados foram também usados para confirmar a participação do fragmento óxido no processo de defragmentação.
Facultad de Ciencias Exactas
description This paper reported on the study of fragmentation pattern in mass spectrometry of 1,2,5-oxadiazole N-oxide derivatives involving deuterium-labeled analogues to identify some critical fragmentations. A neutral CH<SUB>2</SUB>O loss from 3-hydroxymethyl-N<SUB>2</SUB>-oxide-4-phenyl-1,2,5-oxadiazole was confirmed with the corresponding mono-deuterated analogue. An OH loss, involving the oxygen of N-oxide, via β-H and δ-H rearrangement, was clearly revealed from 3-(4-methylpiperazine-1-ylmethyl)-N<SUB>2</SUB>-oxide-4-phenyl-1, 2,5-oxadiazole using the adequate tetra-deuterated analogue. N-oxide isomer and deoxygenated analogues were also used to confirm the participation of the oxide moiety in the fragmentation process.
publishDate 2004
dc.date.none.fl_str_mv 2004
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/84487
url http://sedici.unlp.edu.ar/handle/10915/84487
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0103-5053
info:eu-repo/semantics/altIdentifier/doi/10.1590/S0103-50532004000200012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
232-240
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instname:Universidad Nacional de La Plata
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