| Title: |
Towards a General Access to 1‐Azaspirocyclic Systems via Photoinduced, Reductive Decarboxylative Radical Cyclizations |
| Authors: |
Kiprova, Natalia; Desnoyers, Marine; Narobe, Rok; Klufts‐Edel, Arthur; Chaud, Juliane; König, Burkhard; Compain, Philippe; Kern, Nicolas |
| Contributors: |
Université de Strasbourg; Deutsche Forschungsgemeinschaft |
| Source: |
Chemistry – A European Journal ; volume 30, issue 13 ; ISSN 0947-6539 1521-3765 |
| Publisher Information: |
Wiley |
| Publication Year: |
2024 |
| Collection: |
Wiley Online Library (Open Access Articles via Crossref) |
| Description: |
A convenient and versatile approach to important 1‐azaspirocyclic systems relevant to medicinal chemistry and natural products is reported herein. The main strategy relies on a reductive decarboxylative cyclization of redox‐active esters which can be rapidly assembled from abundant cyclic azaacids and tailored acceptor sidechains, with a focus on alkyne acceptors enabling the generation of useful exo ‐alkene moieties. Diastereoconvergent variants were studied and could be achieved either through remote stereocontrol or conformational restriction in bicyclic carbamate substrates. Two sets of metal‐free photocatalytic conditions employing inexpensive eosin Y were disclosed and studied experimentally to highlight key mechanistic divergences. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1002/chem.202303841 |
| Availability: |
https://doi.org/10.1002/chem.202303841 |
| Rights: |
http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.5E6228FE |
| Database: |
BASE |