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Addition of lithiated enol ethers to nitrones and subsequent Lewis acid induced cyclizations to enantiopure 3,6-dihydro-2H-pyrans – an approach to carbohydrate mimetics
A stereodivergent synthesis of enantiopure 3,6-dihydro-2H-pyrans is presented. The addition of lithiated enol ethers to carbohydrate-derived nitrones afforded syn- or anti-configured hydroxylamine derivatives 4a–d that were cyclized under Lewis acidic conditions to yield functionalized dihydropyrans...
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| Main Authors: | , |
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| Format: | Artigo |
| Jezik: | Inglês |
| Izdano: |
Beilstein-Institut
2010
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| Teme: | |
| Online dostop: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2919261/ https://ncbi.nlm.nih.gov/pubmed/20703374 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.3762/bjoc.6.75 |
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