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Hydrogen Atom Transfer-Driven Enantioselective Minisci Reaction of Amides
[Image: see text] Minisci-type reactions constitute one of the most powerful methods for building up complexity around basic heteroarenes. The most desirable variants involve formal oxidative coupling of a C–H bond on each partner, leading back to the simplest possible starting materials. We herein...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical
Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8033566/ https://www.ncbi.nlm.nih.gov/pubmed/33780237 http://dx.doi.org/10.1021/jacs.1c01556 |
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author | Proctor, Rupert S. J. Chuentragool, Padon Colgan, Avene C. Phipps, Robert J. |
author_facet | Proctor, Rupert S. J. Chuentragool, Padon Colgan, Avene C. Phipps, Robert J. |
author_sort | Proctor, Rupert S. J. |
collection | PubMed |
description | [Image: see text] Minisci-type reactions constitute one of the most powerful methods for building up complexity around basic heteroarenes. The most desirable variants involve formal oxidative coupling of a C–H bond on each partner, leading back to the simplest possible starting materials. We herein disclose a method that enables such a coupling of linear amides and heteroarenes with full control of enantioselectivity at the newly formed stereocenter as well as site selectivity on both the heteroarene and the amide. This is achieved by the use of a chiral phosphoric acid catalyst in conjunction with diacetyl as a combined hydrogen atom transfer reagent and oxidant. Diacetyl is directly photoexcitable, and thus, no extraneous photocatalyst is required: an added feature that contributes to the simplicity and practicality of the protocol. |
format | Online Article Text |
id | pubmed-8033566 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical
Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-80335662021-04-09 Hydrogen Atom Transfer-Driven Enantioselective Minisci Reaction of Amides Proctor, Rupert S. J. Chuentragool, Padon Colgan, Avene C. Phipps, Robert J. J Am Chem Soc [Image: see text] Minisci-type reactions constitute one of the most powerful methods for building up complexity around basic heteroarenes. The most desirable variants involve formal oxidative coupling of a C–H bond on each partner, leading back to the simplest possible starting materials. We herein disclose a method that enables such a coupling of linear amides and heteroarenes with full control of enantioselectivity at the newly formed stereocenter as well as site selectivity on both the heteroarene and the amide. This is achieved by the use of a chiral phosphoric acid catalyst in conjunction with diacetyl as a combined hydrogen atom transfer reagent and oxidant. Diacetyl is directly photoexcitable, and thus, no extraneous photocatalyst is required: an added feature that contributes to the simplicity and practicality of the protocol. American Chemical Society 2021-03-29 2021-04-07 /pmc/articles/PMC8033566/ /pubmed/33780237 http://dx.doi.org/10.1021/jacs.1c01556 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Proctor, Rupert S. J. Chuentragool, Padon Colgan, Avene C. Phipps, Robert J. Hydrogen Atom Transfer-Driven Enantioselective Minisci Reaction of Amides |
title | Hydrogen
Atom Transfer-Driven Enantioselective Minisci
Reaction of Amides |
title_full | Hydrogen
Atom Transfer-Driven Enantioselective Minisci
Reaction of Amides |
title_fullStr | Hydrogen
Atom Transfer-Driven Enantioselective Minisci
Reaction of Amides |
title_full_unstemmed | Hydrogen
Atom Transfer-Driven Enantioselective Minisci
Reaction of Amides |
title_short | Hydrogen
Atom Transfer-Driven Enantioselective Minisci
Reaction of Amides |
title_sort | hydrogen
atom transfer-driven enantioselective minisci
reaction of amides |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8033566/ https://www.ncbi.nlm.nih.gov/pubmed/33780237 http://dx.doi.org/10.1021/jacs.1c01556 |
work_keys_str_mv | AT proctorrupertsj hydrogenatomtransferdrivenenantioselectiveminiscireactionofamides AT chuentragoolpadon hydrogenatomtransferdrivenenantioselectiveminiscireactionofamides AT colganavenec hydrogenatomtransferdrivenenantioselectiveminiscireactionofamides AT phippsrobertj hydrogenatomtransferdrivenenantioselectiveminiscireactionofamides |