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 |_|`-`      `-`'   `-`  `-`   `-----`   `-` --` 
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Text this: Vicinal dianions of diethyl α-aroylsuccinates: Preparation of functionalized-2,3-dihydrofurans and -furans, and diaxial 2,4-diaryl-3,7-dioxabicyclo[3.3.0]octanes