(4-tert-Butylphenyl)(diphenyl)sulfanium bromide → 4-Tert-butylphenyldiphenylsulfonium 2-pivaloyloxy-1,1-difluoroethanesulfonate

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Reaction Steps

In 150 g of dichloromethane were dissolved 20 g (0.052 mole) of sodium 2-(pivaloyloxy)-1,1-difluoroethanesulfonate (purity 70%) and 217 g (0.052 mole) of a 4-tert-butylphenyldiphenylsulfonium bromide aqueous solution. The organic layer was separated, washed three times with 50 g of water, and concentrated. Diethyl ether was added to the residue for recrystallization, obtaining the target compound as white crystals. 26 g (yield 79%).

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