Reaction of methyl 2-methylidene-3-oxolup-20(29)-en-28-oate with triphenylphosphonium trifluoromethanesulfonate
| Autor: | A. V. Nemtarev, O. V. Tsepaeva, Vladimir F. Mironov |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
010405 organic chemistry Organic Chemistry Salt (chemistry) 010402 general chemistry 01 natural sciences Chloride Terpenoid 0104 chemical sciences chemistry.chemical_compound chemistry medicine Organic chemistry Epimer Methylene Trifluoromethanesulfonate medicine.drug |
| Zdroj: | Russian Journal of Organic Chemistry. 53:621-623 |
| ISSN: | 1608-3393 1070-4280 |
| DOI: | 10.1134/s1070428017040212 |
| Popis: | Phosphorylation of methyl 2-methylidene-3-oxolup-20(29)-en-28-oate with triphenylphosphonium trifluoromethanesulfonate in methylene chloride at 20°C afforded 90% of a γ-oxoalkylphosphonium salt containing a terpenoid fragment, [28-methoxy-3,28-dioxolup-20(29)-en-2-ylmethyl]triphenylphosphonium trifluoromethanesulfonate, as a mixture of two epimers (2S/2R) at a ratio of 2: 1. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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