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Intramolecular [2+2] cycloaddition reactions of alkynyl ether-derived ketenes. A convenient synthesis of donor-acceptor cyclobutanes
[Image: see text] Mild thermolysis of tert-butyl alkynyl ethers furnishes aldoketenes, which undergo facile [2+2] cycloaddition reactions with pendant di- and trisubstituted alkenes. A wide variety of cis-fused cyclobutanones are produced in moderate to high diastereoselectivity and good to excellen...
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| Main Authors: | , |
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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
2011
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3244214/ https://ncbi.nlm.nih.gov/pubmed/22103709 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1021/ol202989c |
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