Allylic Oxidation with SeO₂ (Riley Oxidation): Mechanism + Exam Traps

Learn allylic oxidation with SeO₂: convert allylic C–H to allylic alcohols (or carbonyls), predict regioselectivity, and avoid overoxidation.

• Reaction: Allylic Oxidation with SeO₂ (Riley Oxidation)
• What it does: Learn allylic oxidation with SeO₂: convert allylic C–H to allylic alcohols (or carbonyls), predict regioselectivity, and avoid overoxidation.
• Typical reagents: SeO2, t‑BuOOH (or H2O2), solvent
• Key intermediate: Varies / context-dependent
• Driving force: Formation of strong C=O / oxidation state stabilization
• Exam type: Predict major product
• Exam type: Mechanism choice