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Rongalite, Sodium hydroxymethanesulfinate

Rongalite generates in situ sulfite anions. Therefore, sodium hydroxymethanesulfinate can be used both as a reducing agent and as a reagent for the preparation of sulfones.

Recent Literature

Rongalite promotes a smoth, one-pot synthesis of aryl alkyl sulfides from disulfides and alkyl halides at room temperature. This protocol is metal-free, strong-base-free, and offers mild reaction conditions, operational simplicity, short reaction times and high yields of products.
R.-y. Tang, P. Zhong, Q.-l. Lin, Synthesis, 2007, 85-91.