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- W4231244588 abstract "Abstract Intermolecular asymmetric gold catalysis involving alkyne activation presents a significant challenge due to its distinct mechanistic mode from other metals. Herein, we report a highly enantioselective synthesis of α,β‐unsaturated δ‐lactones from [4+2] annulation of propiolates and alkenes in upto 95 % ee . Notably, for the desired chiral recognition, the choice of 1,1,2,2‐tetrachloroethane as solvent was found to be crucial. Furthermore, an anionic surfactant (sodium dodecyl sulfate) improved the product selectivity in the divergence of the cyclopropyl gold carbene intermediate." @default.
- W4231244588 created "2022-05-12" @default.
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- W4231244588 creator A5038914045 @default.
- W4231244588 creator A5069005977 @default.
- W4231244588 date "2018-09-04" @default.
- W4231244588 modified "2023-10-15" @default.
- W4231244588 title "Asymmetric Synthesis of Dihydropyranones via Gold(I)‐Catalyzed Intermolecular [4+2] Annulation of Propiolates and Alkenes" @default.
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- W4231244588 doi "https://doi.org/10.1002/ange.201807514" @default.
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