Bis sulphonyl methanes

Bis(sulphonyl)methanes.— The enhanced acidity of bis(sulphonyl)methanes (R S02)2CHR has been related to that of cyano-analogues/ Both methylene protons in these compounds (R =H) can be substituted by 

Electroreduction of tris(sulphonyl)methanes (ArS02)jCH gives bis-(sulphonyl)methanes.  

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MeS02)aCH2 and establishing a novel route to bis(sulphonyl)methanes. 1-Chloroethanesulphinic acid, MeCHClS02H, gives products derived from methylsulphene, MeCH=SOa, in basic media, e.g. (170) (171). ... 

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