Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines
| Main Author: | |
|---|---|
| Publication Date: | 2019 |
| Other Authors: | , , , , , , |
| Format: | Article |
| Language: | eng |
| Source: | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| Download full: | https://hdl.handle.net/10316/90926 https://doi.org/10.1055/s-0039-1691533 |
Summary: | A successful one-pot methodology for the synthesis of chiral 2-tetrazolyl-2H-azirines has been established, resorting to organocatalysis. The protocol involves the in situ tosylation of β-ketoxime-1H-tetrazoles followed by the Neber reaction, in the presence of chiral organocatalysts. Among the organocatalysts studied a novel thiourea catalyst derived from 6β-aminopenicillanic acid afforded excellent enantioselectivities. |
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Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines2H-azirinesAsymmetric Neber reactionOrganocatalysisTetrazolesThiourea6β-aminopenicillanic acidA successful one-pot methodology for the synthesis of chiral 2-tetrazolyl-2H-azirines has been established, resorting to organocatalysis. The protocol involves the in situ tosylation of β-ketoxime-1H-tetrazoles followed by the Neber reaction, in the presence of chiral organocatalysts. Among the organocatalysts studied a novel thiourea catalyst derived from 6β-aminopenicillanic acid afforded excellent enantioselectivities.Georg Thieme Verlag2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://hdl.handle.net/10316/90926https://hdl.handle.net/10316/90926https://doi.org/10.1055/s-0039-1691533eng0936-52141437-2096https://www.thieme-connect.com/products/ejournals/abstract/10.1055/s-0039-1691533Alves, CláudiaGrosso, CarlaBarrulas, PedroPaixão, José A.Cardoso, Ana L.Burke, Anthony J.Lemos, AméricoMelo, Teresa M. V. D. Pinho einfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2022-05-25T05:46:49Zoai:estudogeral.uc.pt:10316/90926Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T05:38:53.092501Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse |
| dc.title.none.fl_str_mv |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines |
| title |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines |
| spellingShingle |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines Alves, Cláudia 2H-azirines Asymmetric Neber reaction Organocatalysis Tetrazoles Thiourea 6β-aminopenicillanic acid |
| title_short |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines |
| title_full |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines |
| title_fullStr |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines |
| title_full_unstemmed |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines |
| title_sort |
Asymmetric Neber Reaction in the Synthesis of Chiral 2-(Tetrazol-5-yl)-2H-Azirines |
| author |
Alves, Cláudia |
| author_facet |
Alves, Cláudia Grosso, Carla Barrulas, Pedro Paixão, José A. Cardoso, Ana L. Burke, Anthony J. Lemos, Américo Melo, Teresa M. V. D. Pinho e |
| author_role |
author |
| author2 |
Grosso, Carla Barrulas, Pedro Paixão, José A. Cardoso, Ana L. Burke, Anthony J. Lemos, Américo Melo, Teresa M. V. D. Pinho e |
| author2_role |
author author author author author author author |
| dc.contributor.author.fl_str_mv |
Alves, Cláudia Grosso, Carla Barrulas, Pedro Paixão, José A. Cardoso, Ana L. Burke, Anthony J. Lemos, Américo Melo, Teresa M. V. D. Pinho e |
| dc.subject.por.fl_str_mv |
2H-azirines Asymmetric Neber reaction Organocatalysis Tetrazoles Thiourea 6β-aminopenicillanic acid |
| topic |
2H-azirines Asymmetric Neber reaction Organocatalysis Tetrazoles Thiourea 6β-aminopenicillanic acid |
| description |
A successful one-pot methodology for the synthesis of chiral 2-tetrazolyl-2H-azirines has been established, resorting to organocatalysis. The protocol involves the in situ tosylation of β-ketoxime-1H-tetrazoles followed by the Neber reaction, in the presence of chiral organocatalysts. Among the organocatalysts studied a novel thiourea catalyst derived from 6β-aminopenicillanic acid afforded excellent enantioselectivities. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019 |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
| format |
article |
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publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/10316/90926 https://hdl.handle.net/10316/90926 https://doi.org/10.1055/s-0039-1691533 |
| url |
https://hdl.handle.net/10316/90926 https://doi.org/10.1055/s-0039-1691533 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
0936-5214 1437-2096 https://www.thieme-connect.com/products/ejournals/abstract/10.1055/s-0039-1691533 |
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info:eu-repo/semantics/openAccess |
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openAccess |
| dc.publisher.none.fl_str_mv |
Georg Thieme Verlag |
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Georg Thieme Verlag |
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reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia instacron:RCAAP |
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