A CONVENIENT PREPARATION OF SULFINIC ACIDS BY THE REACTION OF 2-SULFONYLPYRIDINES AND THEIR N-OXIDES WITH NUCLEOPHILES
Ipso-substitution reaction of 2-sulfonylpyridines and their N-oxides with alkoxide or thiolate anion afforded the sodium salts of sulfinic acids together with the corresponding substitution product in high yields.This procedure becomes a convenient and versatile method for preparation of various sulfinic acids.