Oxidative Cyclodehydrogenation of Trinaphthylamine: Selective Formation of a Nitrogen‐Centered Polycyclic π‐System Comprising 5‐ and 7‐Membered Rings

Abstract: We describe a new type of nitrogen‐centered polycyclic scaffold comprising a unique combination of 5‐, 6‐, and 7‐membered rings. The compound is accessible through an intramolecular oxidative cyclodehydrogenation of tri (1‐naphthyl) amine. To the best of our knowledge this is the very first example of a direct 3‐fold cyclization of a triarylamine under oxidative conditions. The unusual ring fusion motif is confirmed by X‐ray crystallography and the impact of cyclization on the electronic and photophysical properties is investigated both experimentally and theoretically based on density‐functional theory (DFT) calculations. The formation of the unexpected product is rationalized by detailed mechanistic studies on the DFT level. The results suggest the cyclization to occur under kinetic control via a dicationic mechanism.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Oxidative Cyclodehydrogenation of Trinaphthylamine: Selective Formation of a Nitrogen‐Centered Polycyclic π‐System Comprising 5‐ and 7‐Membered Rings ; day:24 ; month:08 ; year:2022 ; extent:1
Angewandte Chemie ; (24.08.2022) (gesamt 1)

Creator
Nebauer, Johannes
Neiß, Christian
Krug, Marcel
Vogel, Alexander
Fehn, Dominik
Ozaki, Shuhei
Rominger, Frank
Meyer, Karsten
Kamada, Kenji
Guldi, Dirk M.
Görling, Andreas
Kivala, Milan

DOI
10.1002/ange.202205287
URN
urn:nbn:de:101:1-2022082515045823690908
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:30 AM CEST

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