Post-Ugi synthesis of furo2,3-cisoquinolines with expanded π-conjugation display emission upon induced aggregation

Key Points

• This research aims to explore the emission characteristics of novel furo[2,3-c]isoquinolines synthesized via Ugi reactions.
• Utilized the Ugi reaction combined with a Pd-mediated secondary transformation for synthesis.
• Analyzed the emission properties of the synthesized compounds under different states of aggregation.
• Compounds exhibited blue emission, which is enhanced upon aggregation.
• Emission spectrum demonstrated a shift corresponding to increased π-conjugation.