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- W3148272871 endingPage "14527" @default.
- W3148272871 startingPage "14521" @default.
- W3148272871 abstract "Abstract The first catalytic asymmetric multiple vinylogous addition reactions initiated by Meinwald rearrangement of vinyl epoxides were realized by employing chiral N , N ′‐dioxide/Sc III complex catalysts. The vinyl epoxides, as masked β,γ‐unsaturated aldehydes, via direct vinylogous additions with isatins, 2‐alkenoylpyridines or methyleneindolinones, provided a facile and efficient way for the synthesis of chiral 3‐hydroxy‐3‐substituted oxindoles, α,β‐unsaturated aldehydes and spiro‐cyclohexene indolinones, respectively with high efficiency and stereoselectivity. The control experiments and kinetic studies revealed that the Lewis acid acted as dual‐tasking catalyst, controlling the initial rearrangement to match subsequent enantioselective vinylogous addition reactions. A catalytic cycle with a possible transition model was proposed to illustrate the reaction mechanism." @default.
- W3148272871 created "2021-04-13" @default.
- W3148272871 creator A5028755548 @default.
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- W3148272871 creator A5065023946 @default.
- W3148272871 creator A5077217676 @default.
- W3148272871 creator A5077232855 @default.
- W3148272871 creator A5081426782 @default.
- W3148272871 date "2021-05-17" @default.
- W3148272871 modified "2023-10-15" @default.
- W3148272871 title "Asymmetric Catalytic Vinylogous Addition Reactions Initiated by Meinwald Rearrangement of Vinyl Epoxides" @default.
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