In the presence of FeCl 3 reaction of alkenols with iodine resulted in intramolecular addition of hydroxyl to alkenol to produce a wide range of iodocyclic ethers in good to excellent yields under mild reaction conditions. The advantages of our procedure include a decreased amount of iodine as well as short reaction times. The broad scope, mild reaction conditions, and experimental ease of this transformation have made it a valuable alternative to current available methods for the preparation of iodocyclic ethers.
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