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Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization

[Image: see text] A stereoselective intramolecular Tsuji–Trost cascade cyclization of (homo)allylic vicinal diacetates with a pendant β-ketoamide or related carbon nucleophile to give γ-lactam-fused vinylcyclopropanes is reported. In addition to two new rings, the products contain three new C–C ster...

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Autores principales: Braun, John, Ariëns, Maxim I., Matsuo, Bianca T., de Vries, Steven, van Wordragen, Ellen D. H., Ellenbroek, Brecht D., Vande Velde, Christophe M. L., Orru, Romano V. A., Ruijter, Eelco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6218879/
https://www.ncbi.nlm.nih.gov/pubmed/30350659
http://dx.doi.org/10.1021/acs.orglett.8b02232
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author Braun, John
Ariëns, Maxim I.
Matsuo, Bianca T.
de Vries, Steven
van Wordragen, Ellen D. H.
Ellenbroek, Brecht D.
Vande Velde, Christophe M. L.
Orru, Romano V. A.
Ruijter, Eelco
author_facet Braun, John
Ariëns, Maxim I.
Matsuo, Bianca T.
de Vries, Steven
van Wordragen, Ellen D. H.
Ellenbroek, Brecht D.
Vande Velde, Christophe M. L.
Orru, Romano V. A.
Ruijter, Eelco
author_sort Braun, John
collection PubMed
description [Image: see text] A stereoselective intramolecular Tsuji–Trost cascade cyclization of (homo)allylic vicinal diacetates with a pendant β-ketoamide or related carbon nucleophile to give γ-lactam-fused vinylcyclopropanes is reported. In addition to two new rings, the products contain three new C–C stereocenters (two of which are quaternary) with a 9:1 dr. Moreover, the reaction proceeds in >94% enantiospecificity with optically enriched starting materials, using an inexpensive carbohydrate as the source of chirality.
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spelling pubmed-62188792018-11-07 Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization Braun, John Ariëns, Maxim I. Matsuo, Bianca T. de Vries, Steven van Wordragen, Ellen D. H. Ellenbroek, Brecht D. Vande Velde, Christophe M. L. Orru, Romano V. A. Ruijter, Eelco Org Lett [Image: see text] A stereoselective intramolecular Tsuji–Trost cascade cyclization of (homo)allylic vicinal diacetates with a pendant β-ketoamide or related carbon nucleophile to give γ-lactam-fused vinylcyclopropanes is reported. In addition to two new rings, the products contain three new C–C stereocenters (two of which are quaternary) with a 9:1 dr. Moreover, the reaction proceeds in >94% enantiospecificity with optically enriched starting materials, using an inexpensive carbohydrate as the source of chirality. American Chemical Society 2018-10-12 2018-11-02 /pmc/articles/PMC6218879/ /pubmed/30350659 http://dx.doi.org/10.1021/acs.orglett.8b02232 Text en Copyright © 2018 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Braun, John
Ariëns, Maxim I.
Matsuo, Bianca T.
de Vries, Steven
van Wordragen, Ellen D. H.
Ellenbroek, Brecht D.
Vande Velde, Christophe M. L.
Orru, Romano V. A.
Ruijter, Eelco
Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization
title Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization
title_full Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization
title_fullStr Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization
title_full_unstemmed Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization
title_short Stereoselective Synthesis of Fused Vinylcyclopropanes by Intramolecular Tsuji–Trost Cascade Cyclization
title_sort stereoselective synthesis of fused vinylcyclopropanes by intramolecular tsuji–trost cascade cyclization
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6218879/
https://www.ncbi.nlm.nih.gov/pubmed/30350659
http://dx.doi.org/10.1021/acs.orglett.8b02232
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