Development of an innovative, green and recyclable switch-molecule-modified GO electrode for preventing Cu NP loss and catalyst deactivation in electro-organic reactions: application in Castro–Stephens coupling

Key Points

• To develop a GO electrode that prevents copper nanoparticle loss and enhances stability in electro-organic reactions.
• Developed a switch-molecule-modified graphene oxide (GO) electrode immobilizing copper through OHPN switching behavior.
• Conducted electrochemical experiments focusing on Castro–Stephens coupling reactions.
• Evaluated copper leaching and catalyst reusability during the reactions.
• Achieved a high yield of 88-98% in the Castro–Stephens coupling to diynes.
• Demonstrated excellent reusability of the modified GO electrode with stable performance over multiple cycles.
• Significantly reduced copper leaching compared to traditional methods.