Enantioselective Total Synthesis of Fortalpinoid Q via a TEMPO+BF4–-Mediated Dehydrative Nazarov Cyclization

)-promoted dehydrative Nazarov cyclization that swiftly forged the crucial cyclopentadiene moiety via an unfunctionalized tertiary divinyl carbinol (TDC) substrate; and (3) a facile aldol-lactonization cascade that ultimately resolved the last obstacle in the synthesis.