Chemoselective synthesis of new functionalized tri(pyridinium) triflates and tosylates bearing chalcogenophosphoryl moieties.

[摘要]：equiv. of 4-toluenesulfonic or trifluoromethanesulfonic acids under mild conditions (THF, r.t., 50-80 min, THF) to give the corresponding tri(pyridinium) triflates and tosylates in quant. yields.

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