A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates

An intermolecular radical addition, using photoredox catalysis, to allenamides and allencarbamates is reported. This transformation synthesizes N-acyl-N’-aryl-N,N’-allylaminals, and proceeds by a conjugated N-acyliminium intermediate that previously has principally been generated by electrophilic ac...

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Main Authors: Olusesan K. Koleoso, Matthew Turner, Felix Plasser, Marc C. Kimber
Format: Article
Language:English
Published: Beilstein-Institut 2020-08-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
Online Access:https://doi.org/10.3762/bjoc.16.165
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author Olusesan K. Koleoso
Matthew Turner
Felix Plasser
Marc C. Kimber
author_facet Olusesan K. Koleoso
Matthew Turner
Felix Plasser
Marc C. Kimber
author_sort Olusesan K. Koleoso
collection DOAJ
description An intermolecular radical addition, using photoredox catalysis, to allenamides and allencarbamates is reported. This transformation synthesizes N-acyl-N’-aryl-N,N’-allylaminals, and proceeds by a conjugated N-acyliminium intermediate that previously has principally been generated by electrophilic activation methods. The radical adds to the central carbon of the allene giving a conjugated N-acyliminium that undergoes nucleophilic addition by arylamines and alcohols.
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spelling doaj.art-59e45f281c354efca5c786957c797f512022-12-21T18:59:46ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972020-08-011611983199010.3762/bjoc.16.1651860-5397-16-165A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamatesOlusesan K. Koleoso0Matthew Turner1Felix Plasser2Marc C. Kimber3School of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UKSchool of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UKSchool of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UKSchool of Science, Department of Chemistry, Loughborough University, Loughborough, LE11 3TU, UKAn intermolecular radical addition, using photoredox catalysis, to allenamides and allencarbamates is reported. This transformation synthesizes N-acyl-N’-aryl-N,N’-allylaminals, and proceeds by a conjugated N-acyliminium intermediate that previously has principally been generated by electrophilic activation methods. The radical adds to the central carbon of the allene giving a conjugated N-acyliminium that undergoes nucleophilic addition by arylamines and alcohols.https://doi.org/10.3762/bjoc.16.165allenamidealleneintermolecularn-acyliminiumphotoredox
spellingShingle Olusesan K. Koleoso
Matthew Turner
Felix Plasser
Marc C. Kimber
A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates
Beilstein Journal of Organic Chemistry
allenamide
allene
intermolecular
n-acyliminium
photoredox
title A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates
title_full A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates
title_fullStr A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates
title_full_unstemmed A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates
title_short A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates
title_sort complementary approach to conjugated n acyliminium formation through photoredox catalyzed intermolecular radical addition to allenamides and allencarbamates
topic allenamide
allene
intermolecular
n-acyliminium
photoredox
url https://doi.org/10.3762/bjoc.16.165
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