Synthesis and chiral optical activity of a quadruple heterohelicene based on 1,4-dihydropyrrolo3,2-bpyrrole–picene hybrid

Key Points

• The research aims to synthesize and characterize a novel diaza-quadruple helicene and investigate its chiral optical properties.
• Synthesis of the diaza-quadruple helicene using 1,4-dihydropyrrolo[3,2-b]pyrrole as a core
• Structural elucidation through spectroscopic analysis including NMR and UV-Vis spectroscopy
• Assessment of chiral optical activity via circular dichroism measurements
• Successful synthesis of the diaza-quadruple helicene with confirmed structural characteristics
• Demonstration of notable chiral optical activity, indicating potential applications in materials science
• Evaluation of the fusion of [6]helicene and [5]helicene units, showing enhanced optical properties