d<sup>5</sup>‐Reactions of Doubly Deprotonated γ,δ‐Unsaturated Carbonyl Derivatives with Electrophiles. A Novel Approach to the Synthesis of Tetrahydrofuran and Tetrahydropyran Derivatives
The dienone‐dianion derivatives 1 react with all types of electrophiles tested (alkyl halide, silyl chloride, ester, ketone, aldehyde, epoxide) to give β, γ‐unsaturated carbonyl compounds of type A (see Formulae 2–6, 13, 14 and Tables 1–5). The α‐ and β‐hydroxyalkylation products obtained from 1a–1d...
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2018
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| 在線閱讀: | https://repository.li.mahidol.ac.th/handle/123456789/30308 |
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