Synthesis and domino metathesis of functionalized 7-oxanorbornene analogs toward cis-fused heterocycles

Here, we report our strategy to synthesize structurally diverse cis-fused heterocycles via 7-oxanorbornene analogs. By the intramolecular Diels–Alder reaction of 3-iodoacrylamide, followed by the domino metathesis reaction, the cis-fused heterobicyclic skeleton was efficiently constructed in 5–8 steps.