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- W2010503022 abstract "Inductive perturbations of C-C triple bonds are shown to dictate the regiochemistry of gold-catalyzed oxidation of internal C-C triple bonds in the cases of propargylic ethers, resulting in highly regioselective formation of β-alkoxy-α,β-unsaturated ketones (up to >50/1 selectivity) via α-oxo gold carbene intermediates. Ethers derived from primary propargylic alcohols can be reliably transformed in good yields, and various functional groups are tolerated. With substrates derived from secondary propargylic alcohols, the development of a new P,N-bidentate ligand enables the minimization of competing alkyl group migration to the gold carbene center over the desired hydride migration; the preferred migration of a phenyl group, however, results in efficient formation of a α-phenyl-β-alkoxy-α,β-unsaturated ketone. These results further advance the surrogacy of a propargyl moiety to synthetically versatile enone function with reliable and readily predictable regioselectivity." @default.
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- W2010503022 date "2014-11-01" @default.
- W2010503022 modified "2023-10-18" @default.
- W2010503022 title "Gold-catalyzed oxidation of propargylic ethers with internal C–C triple bonds: Impressive regioselectivity enabled by inductive effect" @default.
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- W2010503022 doi "https://doi.org/10.1016/j.jorganchem.2014.08.005" @default.
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