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Enantioselective Synthesis of 2-Methyl-1,2-syn- and 2-Methyl-1,2-anti-3-Butenediols Via Allene Hydroboration-Aldehyde Allylboration Reaction Sequences
The hydroboration of allene 7 with ((d)Ipc)(2)BH at 0 °C provides the kinetic allylborane 12Z with ≥20 : 1 selectivity. However, when the hydroboration is performed at 85 °C, the kinetically formed allylborane isomerizes to give the thermodynamic allylborane 12E with ≥12 : 1 selectivity. Subsequent...
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| Main Authors: | , , |
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| Format: | Artigo |
| Language: | Inglês |
| Published: |
2009
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| Subjects: | |
| Online Access: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2762002/ https://ncbi.nlm.nih.gov/pubmed/19778012 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1021/ja904599h |
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