Exo-Selective Intramolecular (4+3) Cycloadditions to Trans-Fused Perhydroazulenes: An Asymmetric Formal Synthesis of (-)-Pseudolaric Acid B
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We present an asymmetric formal total synthesis of pseudolaric acid B (PAB), based on the intramolecular (4+3) cycloaddition of a new class of epoxy enolsilane substrates. This substrate type has the epoxide geminally-substituted on the tether to the furan, wh... ...
