Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/22388 |
Resumo: | In the present work, we reported the synthesis of a series of heterocycles via electrophilic intramolecular cyclization of (2-(butylselanyl)phenyl)-3-phenylprop-2-yn-1 1, for the synthesis of benzo[b]selenophene 2, mediated by I2. In the first, report the synthesis of (2-(butylselanyl)phenyl)-3-phenylprop-2-yn-1 1 promoted by the addition reaction lithium alkynyl anion to the aldehydes was performed, subsequently cyclized using I2 in ethanol as solvent at room temperature. In the present study were obtained their products in moderate to good yields. In order to evaluate the versatility of benzo[b]selenophene 2 was submitted of cyanation reaction for obtaining benzo[b]selenophene -2- carbonitrile 3 in 82% yield. furthermore, the addition of alkyne anions to carbonyl of benzoselenofenos 2 gave 1- (benzo[b]selenophen-2-il)-1-phenyl-3-p-tolylprop-2-in-1-ol 4 in 62% yield. Subsequently, the intramolecular cyclization reaction of compound 4 with BuSeBr gave the [ 3,2- b] benzoselenofeno -2-yl (p- tolyl ) methanone 5 in 53% yield. |
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2021-10-14T09:21:56Z2021-10-14T09:21:56Z2015-02-27http://repositorio.ufsm.br/handle/1/22388In the present work, we reported the synthesis of a series of heterocycles via electrophilic intramolecular cyclization of (2-(butylselanyl)phenyl)-3-phenylprop-2-yn-1 1, for the synthesis of benzo[b]selenophene 2, mediated by I2. In the first, report the synthesis of (2-(butylselanyl)phenyl)-3-phenylprop-2-yn-1 1 promoted by the addition reaction lithium alkynyl anion to the aldehydes was performed, subsequently cyclized using I2 in ethanol as solvent at room temperature. In the present study were obtained their products in moderate to good yields. In order to evaluate the versatility of benzo[b]selenophene 2 was submitted of cyanation reaction for obtaining benzo[b]selenophene -2- carbonitrile 3 in 82% yield. furthermore, the addition of alkyne anions to carbonyl of benzoselenofenos 2 gave 1- (benzo[b]selenophen-2-il)-1-phenyl-3-p-tolylprop-2-in-1-ol 4 in 62% yield. Subsequently, the intramolecular cyclization reaction of compound 4 with BuSeBr gave the [ 3,2- b] benzoselenofeno -2-yl (p- tolyl ) methanone 5 in 53% yield.Este trabalho relata a síntese de uma série de heterociclos através da ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3-ols 1, para a síntese de benzoselenofenos 2, mediada por I2. Primeiramente, relatamos a síntese de uma série de 2-butilselenofenilprop-1-in-3-ols 1 via reação com anion de alquinil lítio e adição à carbonila, sendo estes posteriormente ciclizados com I2 em etanol como solvente e à temperatura ambiente. No presente trabalho foram obtidos os respectivos produtos em rendimentos de moderados a bons. A fim de avaliar a versatilidade dos benzoselenofenos 2 obtidos, os mesmos foram submetidos reação de cianação para a obtenção de benzo[b]selenofeno-2-carbonitrila 3 isolado em rendimento de 82%. Posteriormente, realizou-se uma adição de alquinos à carbonila do benzoselenofenos 2 para a obtenção do 1-(benzo[b]selenofen-2-il)-1-fenil-3- p-toluilprop-2-in-1-ol 4 em um rendimento de 62%. Subsequentemente, promoveu-se a reação de ciclização intramolecular do composto 4, com BuSeBr como agente de ciclização, para a obtenção do [3,2-b]benzoselenofeno-2-il(p-toluil)metanona 5 em rendimento de 53%.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências Naturais e ExatasPrograma de Pós-Graduação em QuímicaUFSMBrasilQuímicaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessBenzo[b]selenofenosCiclização eletrofílicaBenzo[b]selenopheneElectrophilic cyclizationCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICAReações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenosElectrophilic Cyclization Intramolecular of (2-(butylselanyl)phenyl)-3-phenylprop- 2-yn-1-ol promoted by I2 to synthesis of benzo[b]selenopheneinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisZeni, Gilson Rogériohttp://lattes.cnpq.br/2355575631197937Godoi, Marcelo deSilva, Paulo Henrique Menezes dahttp://lattes.cnpq.br/1549950446615225Pistoia, Renan Piovesan100600000000600600600600b35c9860-bf5d-4c8a-ab16-02ed6931c067fe682264-7ac2-41e6-a0e0-8230087e3108b7fa9a3b-3ef6-4dd5-a68d-00c7947af7045ba48325-1e6f-415e-aa9e-956ae547209dreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALDIS_PPGQUIMICA_2015_PISTOIA_RENAN.pdfDIS_PPGQUIMICA_2015_PISTOIA_RENAN.pdfDissertação de Mestradoapplication/pdf14084294http://repositorio.ufsm.br/bitstream/1/22388/1/DIS_PPGQUIMICA_2015_PISTOIA_RENAN.pdf95b5bee06106dbb107d8de44cc5e7fa9MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos |
dc.title.alternative.eng.fl_str_mv |
Electrophilic Cyclization Intramolecular of (2-(butylselanyl)phenyl)-3-phenylprop- 2-yn-1-ol promoted by I2 to synthesis of benzo[b]selenophene |
title |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos |
spellingShingle |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos Pistoia, Renan Piovesan Benzo[b]selenofenos Ciclização eletrofílica Benzo[b]selenophene Electrophilic cyclization CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos |
title_full |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos |
title_fullStr |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos |
title_full_unstemmed |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos |
title_sort |
Reações de ciclização eletrofílica intramolecular de 2-butilselenofenilprop-1-in-3- ois promovida por I2 para a síntese de benzo[b]selenofenos |
author |
Pistoia, Renan Piovesan |
author_facet |
Pistoia, Renan Piovesan |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Zeni, Gilson Rogério |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2355575631197937 |
dc.contributor.referee1.fl_str_mv |
Godoi, Marcelo de |
dc.contributor.referee2.fl_str_mv |
Silva, Paulo Henrique Menezes da |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1549950446615225 |
dc.contributor.author.fl_str_mv |
Pistoia, Renan Piovesan |
contributor_str_mv |
Zeni, Gilson Rogério Godoi, Marcelo de Silva, Paulo Henrique Menezes da |
dc.subject.por.fl_str_mv |
Benzo[b]selenofenos Ciclização eletrofílica |
topic |
Benzo[b]selenofenos Ciclização eletrofílica Benzo[b]selenophene Electrophilic cyclization CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Benzo[b]selenophene Electrophilic cyclization |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
In the present work, we reported the synthesis of a series of heterocycles via electrophilic intramolecular cyclization of (2-(butylselanyl)phenyl)-3-phenylprop-2-yn-1 1, for the synthesis of benzo[b]selenophene 2, mediated by I2. In the first, report the synthesis of (2-(butylselanyl)phenyl)-3-phenylprop-2-yn-1 1 promoted by the addition reaction lithium alkynyl anion to the aldehydes was performed, subsequently cyclized using I2 in ethanol as solvent at room temperature. In the present study were obtained their products in moderate to good yields. In order to evaluate the versatility of benzo[b]selenophene 2 was submitted of cyanation reaction for obtaining benzo[b]selenophene -2- carbonitrile 3 in 82% yield. furthermore, the addition of alkyne anions to carbonyl of benzoselenofenos 2 gave 1- (benzo[b]selenophen-2-il)-1-phenyl-3-p-tolylprop-2-in-1-ol 4 in 62% yield. Subsequently, the intramolecular cyclization reaction of compound 4 with BuSeBr gave the [ 3,2- b] benzoselenofeno -2-yl (p- tolyl ) methanone 5 in 53% yield. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-02-27 |
dc.date.accessioned.fl_str_mv |
2021-10-14T09:21:56Z |
dc.date.available.fl_str_mv |
2021-10-14T09:21:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/22388 |
url |
http://repositorio.ufsm.br/handle/1/22388 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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100600000000 |
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600 600 600 600 |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Química |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.source.none.fl_str_mv |
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Universidade Federal de Santa Maria (UFSM) |
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