Synthesis of Quinolino[4,3‐j]phenanthridines and their Photophysical Characterization

European Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Abstract Quinolino[4,3‐ j ]phenanthridines were synthesized from para ‐terphenyl‐2,2′′‐diamines, which obtained by cross‐coupling reactions. The diamines converted into amides and ortho ‐cyclized to quinolino[4,3‐ using Morgan‐Walls Prolonged reaction times required in these electrophilic substitution reactions overcome the respective deactivated intermediates formed after first fusion. Optophysical properties determined UV/Vis fluorescence spectroscopy calculated quantum chemical calculations. compounds exhibit rather small HOMO/LUMO gaps a remarkable bathochromic shift of luminescence upon protonation, what makes promising candidates for optoelectronic applications.

Language: Английский

Visible Light-induced Reductive Aza-6π Electrocyclization Access to Phenanthridines

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(24), P. 4968 - 4972

Published: Jan. 1, 2024

A simple, efficient, green method for constructing substituted phenanthridine with nitroaromatic hydrocarbons and aromatic aldehydes alkyl under visible light.

Language: Английский