Matter of choice: The title compound (FBDT), a cyclic analogue of 1-fluorobis(phenylsulfonyl)methane (FBSM), was developed as a reagent for the nucleophilic monofluoromethylation of aldehydes. By choice of an appropriate base it is possible to achieve selective 1,2- or 1,4-addition of FBDT to conjugated aldehydes. The method was applied to the synthesis of a fluorinated isostere of osmundalactone.
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Furukawa et al. (2010) studied this question.
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