ChemInform Abstract: Efforts Toward the Synthesis of Pseudolaric Acid A: Intramolecular Bromoetherification as a Multipurpose Synthetic Tool

Regioselective double bond cleavage within 5, required for access to the trans-fused perhydroazulene framework of pseudolaric acid A (1), has been accomplished via a highly diastereoselective intramolecular bromoetherification process, the latter serving a dual role as a protecting group tactic.