Efficient synthesis of polycycles by electrocyclizations of substituted trihydroxybenzenes: Synthesis of rubranine and deoxybruceol

摘要

A new synthetic route for biologically interesting poly-cycles with a citran and a cyclol nucleus was developed starting from several substituted trihydroxybenzenes. This methodology was applied successfully to the synthesis of two natural products, rubranine and deoxybruceol.