An efficient sulfonylation of activated alkenes with sodium arylsulfinates in water at room temperature is introduced. Water proves to enhance more obviously the transformation compared with other solvents. The quantum chemical calculations suggest that the protonation of alkenes is the key step of the reaction, which could be accelerated by polarity effects of water. Moreover, water can polarize and stabilize the charged intermediates based on the results of quantum calculations.
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Lu et al. (2016) studied this question.
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