A New Route to Crown Ethers by Ruthenium-Catalyzed Ring Closing Metathesis
- 1 October 1996
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1996 (10) , 1013-1014
- https://doi.org/10.1055/s-1996-5643
Abstract
The ruthenium-catalyzed ring closing metathesis reaction of bis-allyl ethers of podands 1a-c and 8 gives macrocyclic crown ethers in good yield at room temperature. Only 1 mol% of the ruthenium-carbene complex 2 are necessary to catalyze the reaction. Cyclic products are obtained exclusively, even at high concentrations.Keywords
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