NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives
- Autores
- Lazaro Martinez, Juan Manuel; Romasanta, Pablo Nicolas; Chattah, Ana Karina; Buldain, Graciela Yolanda
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The existence and stability of the aldehyde-hydrate form of imidazole-2-carboxaldehyde (4) were studied using FTIR together with solution- and solid-state NMR experiments. The results allowed us to conclude that the hydrate form was stable and precipitated at pH = 8.0 and that the aldehyde form was isolated at pH = 6.5 and 9.5. Moreover, the presence of the aldehyde-hydrate form was studied through NMR experiments in D2O at both alkaline and acidic pH. In addition, the tautomeric forms of the 2-substituted imidazole compounds were also analyzed to investigate the influence of the hybridization on the carbon adjacent to the imidazole ring, by 13C NMR in DMSO-d6, acetone-d6, and CDCl3. The presence of the syn- and anti-isomers of oxime 8 obtained from 4 were characterized by solid-state NMR and variable-temperature NMR experiments in acetone-d 6.
Fil: Lazaro Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
Fil: Romasanta, Pablo Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina
Fil: Chattah, Ana Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Buldain, Graciela Yolanda. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Imidazole-2-carboxaldehyde
Hydrate
NMR
Aldehyde forms - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/112934
Ver los metadatos del registro completo
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NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivativesLazaro Martinez, Juan ManuelRomasanta, Pablo NicolasChattah, Ana KarinaBuldain, Graciela YolandaImidazole-2-carboxaldehydeHydrateNMRAldehyde formshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The existence and stability of the aldehyde-hydrate form of imidazole-2-carboxaldehyde (4) were studied using FTIR together with solution- and solid-state NMR experiments. The results allowed us to conclude that the hydrate form was stable and precipitated at pH = 8.0 and that the aldehyde form was isolated at pH = 6.5 and 9.5. Moreover, the presence of the aldehyde-hydrate form was studied through NMR experiments in D2O at both alkaline and acidic pH. In addition, the tautomeric forms of the 2-substituted imidazole compounds were also analyzed to investigate the influence of the hybridization on the carbon adjacent to the imidazole ring, by 13C NMR in DMSO-d6, acetone-d6, and CDCl3. The presence of the syn- and anti-isomers of oxime 8 obtained from 4 were characterized by solid-state NMR and variable-temperature NMR experiments in acetone-d 6.Fil: Lazaro Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; ArgentinaFil: Romasanta, Pablo Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; ArgentinaFil: Chattah, Ana Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Buldain, Graciela Yolanda. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Chemical Society2010-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/112934Lazaro Martinez, Juan Manuel; Romasanta, Pablo Nicolas; Chattah, Ana Karina; Buldain, Graciela Yolanda; NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives; American Chemical Society; Journal of Organic Chemistry; 75; 10; 5-2010; 3208-32130022-32631520-6904CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jo902588sinfo:eu-repo/semantics/altIdentifier/doi/10.1021/jo902588sinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:01Zoai:ri.conicet.gov.ar:11336/112934instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:34:01.574CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives |
title |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives |
spellingShingle |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives Lazaro Martinez, Juan Manuel Imidazole-2-carboxaldehyde Hydrate NMR Aldehyde forms |
title_short |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives |
title_full |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives |
title_fullStr |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives |
title_full_unstemmed |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives |
title_sort |
NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives |
dc.creator.none.fl_str_mv |
Lazaro Martinez, Juan Manuel Romasanta, Pablo Nicolas Chattah, Ana Karina Buldain, Graciela Yolanda |
author |
Lazaro Martinez, Juan Manuel |
author_facet |
Lazaro Martinez, Juan Manuel Romasanta, Pablo Nicolas Chattah, Ana Karina Buldain, Graciela Yolanda |
author_role |
author |
author2 |
Romasanta, Pablo Nicolas Chattah, Ana Karina Buldain, Graciela Yolanda |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Imidazole-2-carboxaldehyde Hydrate NMR Aldehyde forms |
topic |
Imidazole-2-carboxaldehyde Hydrate NMR Aldehyde forms |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The existence and stability of the aldehyde-hydrate form of imidazole-2-carboxaldehyde (4) were studied using FTIR together with solution- and solid-state NMR experiments. The results allowed us to conclude that the hydrate form was stable and precipitated at pH = 8.0 and that the aldehyde form was isolated at pH = 6.5 and 9.5. Moreover, the presence of the aldehyde-hydrate form was studied through NMR experiments in D2O at both alkaline and acidic pH. In addition, the tautomeric forms of the 2-substituted imidazole compounds were also analyzed to investigate the influence of the hybridization on the carbon adjacent to the imidazole ring, by 13C NMR in DMSO-d6, acetone-d6, and CDCl3. The presence of the syn- and anti-isomers of oxime 8 obtained from 4 were characterized by solid-state NMR and variable-temperature NMR experiments in acetone-d 6. Fil: Lazaro Martinez, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina Fil: Romasanta, Pablo Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. Margni; Argentina Fil: Chattah, Ana Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina Fil: Buldain, Graciela Yolanda. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
The existence and stability of the aldehyde-hydrate form of imidazole-2-carboxaldehyde (4) were studied using FTIR together with solution- and solid-state NMR experiments. The results allowed us to conclude that the hydrate form was stable and precipitated at pH = 8.0 and that the aldehyde form was isolated at pH = 6.5 and 9.5. Moreover, the presence of the aldehyde-hydrate form was studied through NMR experiments in D2O at both alkaline and acidic pH. In addition, the tautomeric forms of the 2-substituted imidazole compounds were also analyzed to investigate the influence of the hybridization on the carbon adjacent to the imidazole ring, by 13C NMR in DMSO-d6, acetone-d6, and CDCl3. The presence of the syn- and anti-isomers of oxime 8 obtained from 4 were characterized by solid-state NMR and variable-temperature NMR experiments in acetone-d 6. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 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://hdl.handle.net/11336/112934 Lazaro Martinez, Juan Manuel; Romasanta, Pablo Nicolas; Chattah, Ana Karina; Buldain, Graciela Yolanda; NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives; American Chemical Society; Journal of Organic Chemistry; 75; 10; 5-2010; 3208-3213 0022-3263 1520-6904 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/112934 |
identifier_str_mv |
Lazaro Martinez, Juan Manuel; Romasanta, Pablo Nicolas; Chattah, Ana Karina; Buldain, Graciela Yolanda; NMR characterization of hydrate and aldehyde forms of imidazole-2- carboxaldehyde and derivatives; American Chemical Society; Journal of Organic Chemistry; 75; 10; 5-2010; 3208-3213 0022-3263 1520-6904 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jo902588s info:eu-repo/semantics/altIdentifier/doi/10.1021/jo902588s |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |