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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/84487
Ver los metadatos del registro completo
id |
SEDICI_59f7e6dc01d7350c3cb70a2348333ab5 |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/84487 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
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 |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1842904173830471680 |
score |
12.993085 |