Abstract

AbstractHerein, a simple and useful approach to angular triquinane and [4.3.3]propellane moieties is described via olefin metathesis starting from exo and endo Diels‐Alder (DA) adducts containing norbornene unit. This approach involves DA reaction, and ring‐rearrangement metathesis (RRM) as key steps. Strained norbornene derivatives on allylation at bridgehead position(s) followed by ring‐opening metathesis and ring‐closing metathesis sequence delivered angular triquinane and also stereochemically different propellane derivatives.

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