Tetrahedron p. 2911 - 2918 (1986)
Update date:2022-08-05
Topics:
Mikami, Koichi
Kishi, Naoyuki
Nakai, Takeshi
Fujita, Yoshiji
Four new sigmatropic sequences triggered by the regiocontrolled <2,3>-Wittig rearrangement of unsymmetrical bis-allylic ethers (1) to the 1,5-dien-3-ols (2) are described, which provide unique, regiocontrolled methods for the synthesis of a wide variety of unsaturated carbonyl compounds possessing interesting molecular frameworks.The newly developed sequences include the <2,3>-Wittig-Claisen, the tandem <2,3>-Wittig-oxy-Cope, the tandem oxy-Cope-Claisen, and the tandem oxy-Cope-Cope sequences.
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