Aryl Imidazoisoindoles for Intrinsic 10π Pericyclic Photochromism with Nonlinear Acid Responsiveness

Key Points

• The aim is to explore the photochromic properties of aryl-imidazoisoindole derivatives under varying acid conditions.
• Synthesis of aryl-imidazoisoindole derivatives with benzene and thiophene rings.
• Conducting photochemical and thermal reactions to study pericyclic behavior.
• Assessment of photochromism and acid responsiveness through various analytical techniques.
• The aryl-imidazoisoindole derivatives exhibited significant 10π photochromism.
• Nonlinear acid responsiveness was observed, leading to distinctive cyclization and cycloreversion patterns.
• Findings support the importance of orbital symmetry in predicting reaction behaviors.