C−O coupling of Malonyl Peroxides with Enol Ethers via [5+2] Cycloaddition: Non‐Rubottom Oxidation Научная публикация
Журнал |
Advanced Synthesis & Catalysis
ISSN: 1615-4169 , E-ISSN: 1615-4150 |
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Вых. Данные | Год: 2019, Том: 361, Номер: 13, Страницы: 3173-3181 Страниц : 9 DOI: 10.1002/adsc.201900271 | ||||
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Реферат:
Malonyl peroxides act both as oxidants and reagents for C−O coupling in reactions with methyl and silyl enol ethers. In the proposed conditions, the oxidative C−O coupling of malonyl peroxides with enol ethers selectively proceeds, bypassing the traditional Rubottom hydroxylation of enol ethers by peroxides. It was observed that the oxidative [5+2] cycloaddition of malonyl peroxides and enol ethers is the key stage of the discovered process. Oxidative C−O coupling of silyl enol ethers leads to the formation of α-acyloxyketones with a free carboxylic acid group. A specially developed preparative one-pot procedure transforms ketones via silyl enol ethers formation and the following coupling into α-acyloxyketones with yields 35–88%. The acid-catalyzed coupling with methyl enol ethers gives remarkable products while retaining the easily oxidizable enol fragment. Furthermore, these molecules contain a free carboxylic acid group, thus these nontrivial products contain two usually incompatible acid and enol ether groups.
Библиографическая ссылка:
Vil' V.A.
, Gorlov E.S.
, Bityukov O.V.
, Barsegyan Y.A.
, Romanova Y.E.
, Merkulova V.M.
, Terent'ev A.O.
C−O coupling of Malonyl Peroxides with Enol Ethers via [5+2] Cycloaddition: Non‐Rubottom Oxidation
Advanced Synthesis & Catalysis. 2019. V.361. N13. P.3173-3181. DOI: 10.1002/adsc.201900271 WOS Scopus OpenAlex
C−O coupling of Malonyl Peroxides with Enol Ethers via [5+2] Cycloaddition: Non‐Rubottom Oxidation
Advanced Synthesis & Catalysis. 2019. V.361. N13. P.3173-3181. DOI: 10.1002/adsc.201900271 WOS Scopus OpenAlex
Идентификаторы БД:
Web of science: | WOS:000484142600017 |
Scopus: | 2-s2.0-85065328673 |
OpenAlex: | W2935308669 |