A new approach to the cedrane ring system via intramolecular [4 + 2] tropone-olefin cycloaddition. Total synthesis of (.+-.)-.alpha.- and .beta.-pipitzol
A new approach to the cedrane ring system via intramolecular [4 + 2] tropone-olefin cycloaddition. Total synthesis of (.+-.)-.alpha.- and .beta.-pipitzol