Neolignanas da Licaria aritu

Detalhes bibliográficos
Autor(a) principal: Corr?a, Raimundo Guilherme Campos
Data de Publicação: 1975
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRRJ
Texto Completo: https://tede.ufrrj.br/jspui/handle/jspui/4352
Resumo: "Louro arit?", Licaria aritu Ducke, is an arboreous Lauraceae species of the Amazon reglon which occurs in regular abundance in the vicinity of Manaus. The specimen examined in the present thesis was collected at Reserva Florestal Adolfo Ducke of Instituto Nacional de Pesquisas da Amaz?nia (INPA), Manaus-Itacoatiara highway. The chemical investigation of benzene and ethanol extracts of trunk wood of the species led to the isolation of three compounds: isoeugenol (XXIV), a propenylphenol which is not very widely distributed in plants, licarin A and licarin B, two novel neolighans. The structures of (2S,3S)-2,3-dihydro-2-(4'-hydroxy-3'-methoxyphenyl)-7-methoxy-3-methyl-5-trans-propenylbenzofuran (XXIII) and of (2S,3S)-2,3-dihydro-7-methoxy-3-methyl-2-(3',4'-methylenedioxyphenyl)-5-trans-propenylbenzofuran (IV) were assigned respectively to licarin A and licarin B, through the analysis of infrared, ultraviolet, mass and proton magnetic resonance spectra. The determination of the absolute configurations relied on the comparison of optical rotatory dispersion curves of the licarins and known 2,3-trans-2-aril-3-methyl-dihydrobenzofurans.
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spelling Gottlieb, Otto RichardGottlieb, Otto RichardCorr?a, Raimundo Guilherme Campos2021-01-27T17:35:39Z1975-06-27CORR?A, Raimundo Guilherme Campos. Neolignanas da Licaria aritu. 1975. 97 f. Disserta??o (Mestrado em Qu?mica) - Instituto de Ci?ncias Exatas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 1975.https://tede.ufrrj.br/jspui/handle/jspui/4352"Louro arit?", Licaria aritu Ducke, is an arboreous Lauraceae species of the Amazon reglon which occurs in regular abundance in the vicinity of Manaus. The specimen examined in the present thesis was collected at Reserva Florestal Adolfo Ducke of Instituto Nacional de Pesquisas da Amaz?nia (INPA), Manaus-Itacoatiara highway. The chemical investigation of benzene and ethanol extracts of trunk wood of the species led to the isolation of three compounds: isoeugenol (XXIV), a propenylphenol which is not very widely distributed in plants, licarin A and licarin B, two novel neolighans. The structures of (2S,3S)-2,3-dihydro-2-(4'-hydroxy-3'-methoxyphenyl)-7-methoxy-3-methyl-5-trans-propenylbenzofuran (XXIII) and of (2S,3S)-2,3-dihydro-7-methoxy-3-methyl-2-(3',4'-methylenedioxyphenyl)-5-trans-propenylbenzofuran (IV) were assigned respectively to licarin A and licarin B, through the analysis of infrared, ultraviolet, mass and proton magnetic resonance spectra. The determination of the absolute configurations relied on the comparison of optical rotatory dispersion curves of the licarins and known 2,3-trans-2-aril-3-methyl-dihydrobenzofurans.O "louro arit?", Licaria aritu Ducke, ? uma laur?cea arb?rea da regi?o amaz?nica, que ocorre com certa abund?ncia nas proximidades de Manaus. O exemplar estudado nesta tese foi coletado na Reserva Florestal Adolfo Ducke do Instituto Nacional de Pesquisas da Amaz?nia (INPA), estrada Manaus-Itacoatiara. A investiga??o qu?mica dos extratos benz?nico e alco?lico da madeira do tronco desta esp?cie levou ao isolamento de tr?s subst?ncias: o isoeugenol (XXIV), um propenilfenol n?o muito comum em esp?cies vegetais, licarina A e licarina B, duas neolignanas novas. As estruturas do (2S,3S)-2,3-di-hidro-2-(4'-hidroxi-3'-metoxifenil)-3-metil-7-metoxi-5-trans-propenilbenzofurano (XXIII) e do (2S,3S)-2,3-di-hidro-2-(3',4'-metilenodioxifenil)-3-metil-7-metoxi-5-trans-propenilbenzofurano (IV) foram atribuidas respectivamente ? licarina A e a licarina B, atrav?s da an?lise de espectros no infra-vermelho no ultra-violeta, de massa e de resson?ncia magn?tica prot?nica. A determina??o das configura??es absolutas se baseou na compara??o de curvas de dispers?o ?tica rotat?ria das licarinas e de 2,3-trans-di-hidro-2-aril-3-metil-benzofuranos conhecidos.Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2021-01-27T17:35:39Z No. of bitstreams: 1 1975 - Raimundo Guilherme Campos Corr?a.pdf: 2135439 bytes, checksum: 3bbd2bea0ae0c7eab5323bc5445eb386 (MD5)Made available in DSpace on 2021-01-27T17:35:39Z (GMT). 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dc.title.por.fl_str_mv Neolignanas da Licaria aritu
title Neolignanas da Licaria aritu
spellingShingle Neolignanas da Licaria aritu
Corr?a, Raimundo Guilherme Campos
Licaria aritu
neolignanas
licarinas
investiga??o qu?mica
Qu?mica
title_short Neolignanas da Licaria aritu
title_full Neolignanas da Licaria aritu
title_fullStr Neolignanas da Licaria aritu
title_full_unstemmed Neolignanas da Licaria aritu
title_sort Neolignanas da Licaria aritu
author Corr?a, Raimundo Guilherme Campos
author_facet Corr?a, Raimundo Guilherme Campos
author_role author
dc.contributor.advisor1.fl_str_mv Gottlieb, Otto Richard
dc.contributor.referee1.fl_str_mv Gottlieb, Otto Richard
dc.contributor.author.fl_str_mv Corr?a, Raimundo Guilherme Campos
contributor_str_mv Gottlieb, Otto Richard
Gottlieb, Otto Richard
dc.subject.por.fl_str_mv Licaria aritu
neolignanas
licarinas
investiga??o qu?mica
topic Licaria aritu
neolignanas
licarinas
investiga??o qu?mica
Qu?mica
dc.subject.cnpq.fl_str_mv Qu?mica
description "Louro arit?", Licaria aritu Ducke, is an arboreous Lauraceae species of the Amazon reglon which occurs in regular abundance in the vicinity of Manaus. The specimen examined in the present thesis was collected at Reserva Florestal Adolfo Ducke of Instituto Nacional de Pesquisas da Amaz?nia (INPA), Manaus-Itacoatiara highway. The chemical investigation of benzene and ethanol extracts of trunk wood of the species led to the isolation of three compounds: isoeugenol (XXIV), a propenylphenol which is not very widely distributed in plants, licarin A and licarin B, two novel neolighans. The structures of (2S,3S)-2,3-dihydro-2-(4'-hydroxy-3'-methoxyphenyl)-7-methoxy-3-methyl-5-trans-propenylbenzofuran (XXIII) and of (2S,3S)-2,3-dihydro-7-methoxy-3-methyl-2-(3',4'-methylenedioxyphenyl)-5-trans-propenylbenzofuran (IV) were assigned respectively to licarin A and licarin B, through the analysis of infrared, ultraviolet, mass and proton magnetic resonance spectra. The determination of the absolute configurations relied on the comparison of optical rotatory dispersion curves of the licarins and known 2,3-trans-2-aril-3-methyl-dihydrobenzofurans.
publishDate 1975
dc.date.issued.fl_str_mv 1975-06-27
dc.date.accessioned.fl_str_mv 2021-01-27T17:35:39Z
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dc.identifier.citation.fl_str_mv CORR?A, Raimundo Guilherme Campos. Neolignanas da Licaria aritu. 1975. 97 f. Disserta??o (Mestrado em Qu?mica) - Instituto de Ci?ncias Exatas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 1975.
dc.identifier.uri.fl_str_mv https://tede.ufrrj.br/jspui/handle/jspui/4352
identifier_str_mv CORR?A, Raimundo Guilherme Campos. Neolignanas da Licaria aritu. 1975. 97 f. Disserta??o (Mestrado em Qu?mica) - Instituto de Ci?ncias Exatas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 1975.
url https://tede.ufrrj.br/jspui/handle/jspui/4352
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