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单词 ψ-ionone
释义

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ψ-ionone
2. In full ψ-ionone. An acyclic compound isomeric with α- and β-ionone which can be cyclized to form those compounds and is used in the synthesis of vitamin A. Also called pseudoionone.Systematic name: (3E,5E)-6,10-dimethylundeca-3,5,9-trien-2-one; C13H20O.
ΚΠ
1897 Jrnl. Chem. Soc. 72 i. 538 Ionone is..easily prepared by the action of sulphuric acid on ψ-ionone, the latter substance being produced from geranaldehyde by condensation with acetone.
1969 W. Templeton Introd. Chem. Terpenoids & Steroids iii. 46 Similarly ψ-ionone.., obtained by condensation of citral with acetone, cyclizes under acidic conditions to α- and β-ionones, which are found in Nature.
2003 C. S. Sell Fragrant Introd. Terpenoid Chem. viii. 261 Epoxidation of ψ-ionone..can be achieved selectively at the most electron rich double bond.
extracted from iononen.
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