Copper catalysed radical cyclization from phenylboronic acid and N-acryloyl indole or benzimidazole derivatives with air as oxidant

Key Points

• The aim is to develop a copper-catalysed method for radical cyclization using phenylboronic acids.
• Utilized copper as a catalyst for radical cyclization
• Investigated the use of phenylboronic acid and benzimidazole derivatives
• Performed thermochemical oxidation with air as oxidant
• Successfully achieved radical cyclization in the presence of copper
• Reduced reliance on stoichiometric oxidants such as Mn(OAc)₃ and peroxides
• Enhanced practical utility of phenylboronic acid in reactions