Total Synthesis of (±)‐Taiwaniaquinol B through a Sequence of Fries Rearrangement and Photo‐Nazarov Cyclization

Abstract Described is a concise route to (±)‐taiwaniaquinol B. The 6‐5‐6‐fused ring system was constructed by sequencing a Fries rearrangement and a photo‐Nazarov cyclization. The application of photoirradiation conditions was found to be crucial for promoting the key electrocyclization and mitigating the competing oxo‐Michael pathway.