Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico
- Autores
- Iglesias, Luis Emilio
- Año de publicación
- 1996
- Idioma
- español castellano
- Tipo de recurso
- tesis doctoral
- Estado
- versión publicada
- Colaborador/a o director/a de tesis
- Gros, Eduardo Gervasio
Baldessari, Alicia - Descripción
- Various bi- and polifunctional hydroxyalkanethiols were chemospecificallyacylated to O-acylesters by lipase-catalyzed transesterifications in organic media. Inaddition, hydroxyalkanethiols with two hydroxyl groups exhibited regiospecificity orregioselectivity, depending on the nature of both the substrate and the lipase. As the chainlength of the α,ω-hydroxyalkanethiol increased, the reaction was limited to smaller acylmoieties. Experimental conditions under which enzymatic acylations were carried out andtheir results are presented and discussed. Biocatalyzed transesterifications allowed thepreparation of twenty-four new esters. The preparation of some α,ω-hydroxyalkanethiolsand the mass spectra of substrates and products are also presented and discussed.
Fil: Iglesias, Luis Emilio. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. - Materia
-
LIPASES
ORGANIC MEDIA
HYDROXYALKANETHIOLS
SELECTIVE ACYLATION
TRANSESTERIFICATION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar
- Repositorio
- Institución
- Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
- OAI Identificador
- tesis:tesis_n2856_Iglesias
Ver los metadatos del registro completo
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Biblioteca Digital (UBA-FCEN) |
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Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánicoLipase-catalyzed chemoselective acylation of hydroxyalkanethiols in organic mediaIglesias, Luis EmilioLIPASESORGANIC MEDIAHYDROXYALKANETHIOLSSELECTIVE ACYLATIONTRANSESTERIFICATIONVarious bi- and polifunctional hydroxyalkanethiols were chemospecificallyacylated to O-acylesters by lipase-catalyzed transesterifications in organic media. Inaddition, hydroxyalkanethiols with two hydroxyl groups exhibited regiospecificity orregioselectivity, depending on the nature of both the substrate and the lipase. As the chainlength of the α,ω-hydroxyalkanethiol increased, the reaction was limited to smaller acylmoieties. Experimental conditions under which enzymatic acylations were carried out andtheir results are presented and discussed. Biocatalyzed transesterifications allowed thepreparation of twenty-four new esters. The preparation of some α,ω-hydroxyalkanethiolsand the mass spectra of substrates and products are also presented and discussed.Fil: Iglesias, Luis Emilio. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Universidad de Buenos Aires. Facultad de Ciencias Exactas y NaturalesGros, Eduardo GervasioBaldessari, Alicia1996info:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_db06info:ar-repo/semantics/tesisDoctoralapplication/pdfhttps://hdl.handle.net/20.500.12110/tesis_n2856_Iglesiasspainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/arreponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCEN2025-09-29T13:42:43Ztesis:tesis_n2856_IglesiasInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:44.877Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse |
dc.title.none.fl_str_mv |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico Lipase-catalyzed chemoselective acylation of hydroxyalkanethiols in organic media |
title |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico |
spellingShingle |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico Iglesias, Luis Emilio LIPASES ORGANIC MEDIA HYDROXYALKANETHIOLS SELECTIVE ACYLATION TRANSESTERIFICATION |
title_short |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico |
title_full |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico |
title_fullStr |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico |
title_full_unstemmed |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico |
title_sort |
Acilación quimioselectiva de hidroxialcanotioles catalizada por lipasas en medio orgánico |
dc.creator.none.fl_str_mv |
Iglesias, Luis Emilio |
author |
Iglesias, Luis Emilio |
author_facet |
Iglesias, Luis Emilio |
author_role |
author |
dc.contributor.none.fl_str_mv |
Gros, Eduardo Gervasio Baldessari, Alicia |
dc.subject.none.fl_str_mv |
LIPASES ORGANIC MEDIA HYDROXYALKANETHIOLS SELECTIVE ACYLATION TRANSESTERIFICATION |
topic |
LIPASES ORGANIC MEDIA HYDROXYALKANETHIOLS SELECTIVE ACYLATION TRANSESTERIFICATION |
dc.description.none.fl_txt_mv |
Various bi- and polifunctional hydroxyalkanethiols were chemospecificallyacylated to O-acylesters by lipase-catalyzed transesterifications in organic media. Inaddition, hydroxyalkanethiols with two hydroxyl groups exhibited regiospecificity orregioselectivity, depending on the nature of both the substrate and the lipase. As the chainlength of the α,ω-hydroxyalkanethiol increased, the reaction was limited to smaller acylmoieties. Experimental conditions under which enzymatic acylations were carried out andtheir results are presented and discussed. Biocatalyzed transesterifications allowed thepreparation of twenty-four new esters. The preparation of some α,ω-hydroxyalkanethiolsand the mass spectra of substrates and products are also presented and discussed. Fil: Iglesias, Luis Emilio. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
description |
Various bi- and polifunctional hydroxyalkanethiols were chemospecificallyacylated to O-acylesters by lipase-catalyzed transesterifications in organic media. Inaddition, hydroxyalkanethiols with two hydroxyl groups exhibited regiospecificity orregioselectivity, depending on the nature of both the substrate and the lipase. As the chainlength of the α,ω-hydroxyalkanethiol increased, the reaction was limited to smaller acylmoieties. Experimental conditions under which enzymatic acylations were carried out andtheir results are presented and discussed. Biocatalyzed transesterifications allowed thepreparation of twenty-four new esters. The preparation of some α,ω-hydroxyalkanethiolsand the mass spectra of substrates and products are also presented and discussed. |
publishDate |
1996 |
dc.date.none.fl_str_mv |
1996 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_db06 info:ar-repo/semantics/tesisDoctoral |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.12110/tesis_n2856_Iglesias |
url |
https://hdl.handle.net/20.500.12110/tesis_n2856_Iglesias |
dc.language.none.fl_str_mv |
spa |
language |
spa |
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 |
dc.publisher.none.fl_str_mv |
Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
publisher.none.fl_str_mv |
Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital (UBA-FCEN) instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales instacron:UBA-FCEN |
reponame_str |
Biblioteca Digital (UBA-FCEN) |
collection |
Biblioteca Digital (UBA-FCEN) |
instname_str |
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
instacron_str |
UBA-FCEN |
institution |
UBA-FCEN |
repository.name.fl_str_mv |
Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
repository.mail.fl_str_mv |
ana@bl.fcen.uba.ar |
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1844618731749113856 |
score |
13.070432 |