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- Title
Versatile Palladium‐catalyzed intramolecular cyclization to access new luminescent azaphosphaphenalene motifs.
- Authors
Simoens, Andreas; Kaczmarek, Anna M.; Machado, Ian P.; Van Hecke, Kristof; Stevens, Christian V.
- Abstract
Using a straightforward sequence of diphosphonylation and a Pd‐catalysed concerted‐metalation‐deprotonation (CMD), a synthetic strategy towards polyaromatic phosphorus containing heterocycles was developed. Herein, we report the synthesis and characterization of new azaphosphaphenalenes, using easily accessible palladium catalysts and starting materials. The key tetrahydroquinoline intermediates of the reaction were synthesised via a fast and effective procedure and could be isolated as such, or further reacted towards the target polyaromatic structures. The obtained products showed interesting luminescent properties and their emission, excitation and quantum yields were evaluated.
- Subjects
RING formation (Chemistry); PALLADIUM catalysts; PHOSPHINE oxides
- Publication
Chemistry - A European Journal, 2024, Vol 30, Issue 19, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202303072