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- W2951971330 abstract "The reaction of chloroketals 1, 5 and 10 with an excess of lithium powder and a catalytic amount of DTBB (4–5%) in THF at −78 or −90°C leads to the corresponding functionalised organolithium compounds 2, 6 and 11, respectively, resulting from a chlorine/lithium exchange; treatment of these intermediates with different electrophiles [H2O, D2O, Me3SiCl, ButCHO, PhCHO, Me2CO, (CH2)4CO, (CH2)5CO, PhCOMe] affords, after hydrolysis with water, the corresponding products 3, 7 and 12, respectively. Careful acidic hydrolysis of these ketalised products with a 10% aqueous solution of oxalic acid leads to the expected ketones 4, 9 and 13, respectively." @default.
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- W2951971330 date "1997-03-01" @default.
- W2951971330 modified "2023-10-18" @default.
- W2951971330 title "Ketalised α- and β-lithiated α,β-unsaturated ketones: New masked acylvinyl anion equivalents" @default.
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- W2951971330 doi "https://doi.org/10.1016/s0040-4020(97)00187-7" @default.
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