Silyl enolates that were generated from α-allyloxy esters afforded the corresponding [2,3]-Wittig rearrangement products in moderate to good yields on treatment with a catalytic amount of Lewis base such as tetrabutylammonium acetate or tetrabutylammonium 4-methoxybenzoate in DMF at room temperature.
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Sato et al. (2005) studied this question.
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