ChemInform Abstract: A Dearomatizing, Thionium Ion Cyclization for the Synthesis of Functionalized, Azaspirocyclic Cyclohexadienones.
β Scribed by Caroline Ovens; Nathaniel G. Martin; David J. Procter
- Publisher
- John Wiley and Sons
- Year
- 2008
- Weight
- 50 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0931-7597
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Stereoselective Synthesis of a Bicyclic Ketooxetane via a Thionium Ion-Mediated Cyclization Reaction. -Et-AlCl2-mediated cyclization of the Z-silyl enol ether onto the thionium ion trigger attached to the five-membered carbocyclic ring gives a good yield the desired bicyclic oxetane (II). It can be