Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400005 |
Resumo: | Various acid diterpenes of Copaifera cearensis Huber ex Ducke were isolated from the crude extract by flash Silica Gel/Potassium Hydroxide Chromatography. The main components were identified by GC-MS analyses. Further fractionation by reversed phase (RP) semi-preparative HPLC allowed isolation and identification of minor components and provided additional spectral data of those compounds. It was possible to detect the presence of eleven acid diterpenes in addition to a sesquiterpene acid. In addition to potassium hydroxide deposition on the silica surface, the presence of Si-OK residues, resulting from a cation exchange process, was established. |
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Journal of the Brazilian Chemical Society (Online) |
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Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gelCopaifera cearensisacidic diterpene fractionGC-MS analysissilica gel/potassium hydroxide chromatographyVarious acid diterpenes of Copaifera cearensis Huber ex Ducke were isolated from the crude extract by flash Silica Gel/Potassium Hydroxide Chromatography. The main components were identified by GC-MS analyses. Further fractionation by reversed phase (RP) semi-preparative HPLC allowed isolation and identification of minor components and provided additional spectral data of those compounds. It was possible to detect the presence of eleven acid diterpenes in addition to a sesquiterpene acid. In addition to potassium hydroxide deposition on the silica surface, the presence of Si-OK residues, resulting from a cation exchange process, was established.Sociedade Brasileira de Química2000-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400005Journal of the Brazilian Chemical Society v.11 n.4 2000reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532000000400005info:eu-repo/semantics/openAccessPinto,Angelo C.Braga,Waldenir F.Rezende,Claudia M.Garrido,Francisco M. S.Veiga Jr.,Valdir F.Bergter,LotharPatitucci,Maria LúciaAntunes,Octávio A. C.eng2000-11-17T00:00:00Zoai:scielo:S0103-50532000000400005Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2000-11-17T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel |
title |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel |
spellingShingle |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel Pinto,Angelo C. Copaifera cearensis acidic diterpene fraction GC-MS analysis silica gel/potassium hydroxide chromatography |
title_short |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel |
title_full |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel |
title_fullStr |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel |
title_full_unstemmed |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel |
title_sort |
Separation of acid diterpenes of Copaifera cearensis huber ex ducke by flash chromatography using potassium hydroxide impregnated silica gel |
author |
Pinto,Angelo C. |
author_facet |
Pinto,Angelo C. Braga,Waldenir F. Rezende,Claudia M. Garrido,Francisco M. S. Veiga Jr.,Valdir F. Bergter,Lothar Patitucci,Maria Lúcia Antunes,Octávio A. C. |
author_role |
author |
author2 |
Braga,Waldenir F. Rezende,Claudia M. Garrido,Francisco M. S. Veiga Jr.,Valdir F. Bergter,Lothar Patitucci,Maria Lúcia Antunes,Octávio A. C. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Pinto,Angelo C. Braga,Waldenir F. Rezende,Claudia M. Garrido,Francisco M. S. Veiga Jr.,Valdir F. Bergter,Lothar Patitucci,Maria Lúcia Antunes,Octávio A. C. |
dc.subject.por.fl_str_mv |
Copaifera cearensis acidic diterpene fraction GC-MS analysis silica gel/potassium hydroxide chromatography |
topic |
Copaifera cearensis acidic diterpene fraction GC-MS analysis silica gel/potassium hydroxide chromatography |
description |
Various acid diterpenes of Copaifera cearensis Huber ex Ducke were isolated from the crude extract by flash Silica Gel/Potassium Hydroxide Chromatography. The main components were identified by GC-MS analyses. Further fractionation by reversed phase (RP) semi-preparative HPLC allowed isolation and identification of minor components and provided additional spectral data of those compounds. It was possible to detect the presence of eleven acid diterpenes in addition to a sesquiterpene acid. In addition to potassium hydroxide deposition on the silica surface, the presence of Si-OK residues, resulting from a cation exchange process, was established. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532000000400005 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.11 n.4 2000 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
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1750318164143505408 |