A photo-induced three-component reaction of N-aryl piperidines, sulfur dioxide, and cycloketone oxime esters

Key Points

• The aim is to develop a new method for synthesizing β-sulfonylated piperidines without external oxidants.
• Utilized a visible-light-driven reaction approach
• Conducted the reaction at room temperature
• Incorporated N-aryl piperidines, sulfur dioxide, and cycloketone oxime esters
• Successfully synthesized β-sulfonylated piperidines
• Achieved good substrate generality in product formation
• Demonstrated effectiveness without the use of external oxidants