3-[((E)-But-2-enyl)oxy]-4-vinyl-nona-1,8-diene 以
neat (no solvent) 为溶剂,
反应 4.0h,
以45%的产率得到(E)-2-(1-Methyl-allyl)-undeca-5,10-dienal
参考文献:
名称:
New sigmatropic sequences based on the [2,3] Wittig rearrangement of bis(allylic) ethers. Regiocontrolled joining reactions of two or three allylic moieties leading to unsaturated carbonyl compounds
Four newsigmatropicsequences triggered by the regiocontrolled [2,3]-Wittig rearrangement of unsymmetrical bis-allylic ethers (1) to the l,5-dien-3-ols (2) arc described, which provide unique, regiocontrolled methods for the synthesis of a wide variety of unsaturatedcarbonylcompounds possessing interesting molecular frameworks. The newly developed sequences include the [2,3]-Wittig-Claisen, the