Transannular dipolar cycloaddition as an approach towards the synthesis of the core ring system of the sarain alkaloids |
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Authors: | Franklin Andrew I Bensa David Adams Harry Coldham Iain |
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Institution: | Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, UK S3 7HF. |
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Abstract: | Intramolecular transannular dipolar cycloaddition was investigated as a key step in a synthetic approach to the core of the sarain alkaloids; although the use of an azomethine ylide was unsuccessful with the chosen aldehyde substrate, cycloaddition with a nitrone did give the alternative regioisomeric bridged cycloadduct. |
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