Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles
The kinetic resolutions of (±)-β-azidophenylethanols were carried out using lipase from Candida antarctica, and enantiomerically enriched (R)-β-azidophenylethanols and their corresponding (S)-β-azidophenylethyl acetates were obtained in good enantiomeric excesses (up to > 99%). The enantiomerical...
Published in: | Journal of the Brazilian Chemical Society |
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Sociedade Brasileira de Química
2013
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Online Access: | http://repositorio.unifesp.br/handle/11600/7957 https://doi.org/10.5935/0103-5053.20130181 |
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ftunivfsaopaulo:oai:repositorio.unifesp.br:11600/7957 2023-10-09T21:47:06+02:00 Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles Rocha, Lenilson Coutinho Rosset, Isac George Melgar, Gliseida Zelayaran Raminelli, Cristiano UNIFESP Porto, André Luiz Meleiro Jeller, Alex Haroldo Universidade de São Paulo (USP) Universidade Federal de São Paulo (UNIFESP) Universidade Estadual de Mato Grosso do Sul Coordenação de Química 2013-09-01 1427-1432 application/pdf http://repositorio.unifesp.br/handle/11600/7957 https://doi.org/10.5935/0103-5053.20130181 eng eng Sociedade Brasileira de Química Journal of the Brazilian Chemical Society http://dx.doi.org/10.5935/0103-5053.20130181 Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 24, n. 9, p. 1427-1432, 2013. 0103-5053 1678-4790 http://repositorio.unifesp.br/handle/11600/7957 S0103-50532013000900006.pdf S0103-50532013000900006 doi:10.5935/0103-5053.20130181 WOS:000324933300006 Acesso aberto CALB lipase biocatalysis click chemistry [3 + 2] cycloaddition Artigo 2013 ftunivfsaopaulo https://doi.org/10.5935/0103-5053.20130181 2023-09-17T15:18:43Z The kinetic resolutions of (±)-β-azidophenylethanols were carried out using lipase from Candida antarctica, and enantiomerically enriched (R)-β-azidophenylethanols and their corresponding (S)-β-azidophenylethyl acetates were obtained in good enantiomeric excesses (up to > 99%). The enantiomerically enriched (R)-β-azidophenylethanols were subjected to cyclization reaction with 2-(trimethylsilyl)phenyl triflate and CsF producing chiral 1,2,3-benzotriazole compounds in good yields (75-86%) by a [3 + 2] cycloaddition, which involves the benzyne formation. As resoluções cinéticas de (±)-β-azidofeniletanóis foram realizadas usando a lipase de Candida antarctica fornecendo os compostos enantiomericamente enriquecidos, (R)-β-azidofeniletanóis e acetato de (S)-β-azidofeniletila em bons excessos enantioméricos (até > 99%). Os (R)-β-azidofeniletanóis enantiomericamente enriquecidos foram submetidos à reação de ciclização com o triflato de 2-(trimetilsilil)fenila e CsF resultando em 1,2,3-benzotriazóis em bons rendimentos (75-86%) pela reação de cicloadição [3 + 2], a qual envolve a formação in situ de benzino. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Universidade de São Paulo Instituto de Química de São Carlos Universidade Federal de São Paulo (UNIFESP) Departamento de Ciências Exatas e da Terra Universidade Estadual de Mato Grosso do Sul Coordenação de Química UNIFESP, Depto. de Ciências Exatas e da Terra SciELO Article in Journal/Newspaper Antarc* Antarctica Universidade Federal de São Paulo (UNIFESP): Repositório Institucional Journal of the Brazilian Chemical Society |
institution |
Open Polar |
collection |
Universidade Federal de São Paulo (UNIFESP): Repositório Institucional |
op_collection_id |
ftunivfsaopaulo |
language |
English |
topic |
CALB lipase biocatalysis click chemistry [3 + 2] cycloaddition |
spellingShingle |
CALB lipase biocatalysis click chemistry [3 + 2] cycloaddition Rocha, Lenilson Coutinho Rosset, Isac George Melgar, Gliseida Zelayaran Raminelli, Cristiano UNIFESP Porto, André Luiz Meleiro Jeller, Alex Haroldo Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles |
topic_facet |
CALB lipase biocatalysis click chemistry [3 + 2] cycloaddition |
description |
The kinetic resolutions of (±)-β-azidophenylethanols were carried out using lipase from Candida antarctica, and enantiomerically enriched (R)-β-azidophenylethanols and their corresponding (S)-β-azidophenylethyl acetates were obtained in good enantiomeric excesses (up to > 99%). The enantiomerically enriched (R)-β-azidophenylethanols were subjected to cyclization reaction with 2-(trimethylsilyl)phenyl triflate and CsF producing chiral 1,2,3-benzotriazole compounds in good yields (75-86%) by a [3 + 2] cycloaddition, which involves the benzyne formation. As resoluções cinéticas de (±)-β-azidofeniletanóis foram realizadas usando a lipase de Candida antarctica fornecendo os compostos enantiomericamente enriquecidos, (R)-β-azidofeniletanóis e acetato de (S)-β-azidofeniletila em bons excessos enantioméricos (até > 99%). Os (R)-β-azidofeniletanóis enantiomericamente enriquecidos foram submetidos à reação de ciclização com o triflato de 2-(trimetilsilil)fenila e CsF resultando em 1,2,3-benzotriazóis em bons rendimentos (75-86%) pela reação de cicloadição [3 + 2], a qual envolve a formação in situ de benzino. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Universidade de São Paulo Instituto de Química de São Carlos Universidade Federal de São Paulo (UNIFESP) Departamento de Ciências Exatas e da Terra Universidade Estadual de Mato Grosso do Sul Coordenação de Química UNIFESP, Depto. de Ciências Exatas e da Terra SciELO |
author2 |
Universidade de São Paulo (USP) Universidade Federal de São Paulo (UNIFESP) Universidade Estadual de Mato Grosso do Sul Coordenação de Química |
format |
Article in Journal/Newspaper |
author |
Rocha, Lenilson Coutinho Rosset, Isac George Melgar, Gliseida Zelayaran Raminelli, Cristiano UNIFESP Porto, André Luiz Meleiro Jeller, Alex Haroldo |
author_facet |
Rocha, Lenilson Coutinho Rosset, Isac George Melgar, Gliseida Zelayaran Raminelli, Cristiano UNIFESP Porto, André Luiz Meleiro Jeller, Alex Haroldo |
author_sort |
Rocha, Lenilson Coutinho |
title |
Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles |
title_short |
Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles |
title_full |
Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles |
title_fullStr |
Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles |
title_full_unstemmed |
Chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles |
title_sort |
chemoenzymatic resolution of β-azidophenylethanols by candida antarctica and their application for the synthesis of chiral benzotriazoles |
publisher |
Sociedade Brasileira de Química |
publishDate |
2013 |
url |
http://repositorio.unifesp.br/handle/11600/7957 https://doi.org/10.5935/0103-5053.20130181 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
Journal of the Brazilian Chemical Society http://dx.doi.org/10.5935/0103-5053.20130181 Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 24, n. 9, p. 1427-1432, 2013. 0103-5053 1678-4790 http://repositorio.unifesp.br/handle/11600/7957 S0103-50532013000900006.pdf S0103-50532013000900006 doi:10.5935/0103-5053.20130181 WOS:000324933300006 |
op_rights |
Acesso aberto |
op_doi |
https://doi.org/10.5935/0103-5053.20130181 |
container_title |
Journal of the Brazilian Chemical Society |
_version_ |
1779309868028526592 |