Llwytho...
High stereoselectivity on low temperature Diels-Alder reactions
We have found that some of the usually poor dienophiles (2-cycloenones) can undergo Diels-Alder reaction at -78°C with unusually high stereoselectivity in the presence of niobium pentachloride as a Lewis acid catalyst. A remarkable difference in reaction rates for unsubstituted and α- or β-methyl su...
Wedi'i Gadw mewn:
| Prif Awduron: | , , , , |
|---|---|
| Fformat: | Artigo |
| Iaith: | Inglês |
| Cyhoeddwyd: |
Beilstein-Institut
2005
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| Pynciau: | |
| Mynediad Ar-lein: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1399462/ https://ncbi.nlm.nih.gov/pubmed/16542029 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1860-5397-1-14 |
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