Novel reaction: Decarboxylative Bamberg-Backlung rearrangement in some α-isopropyl sulfonyl carboxylic esters

Article abstract of DOI:10.1016/0040-4039(95)01827-5

The reaction of some isopropylsulfonyl α-mono and disubstituted esters with KOH/t-BuOH/CCl₄ is reported. For the α,α-dialkyl and α-monoaryl substituted derivatives the key step of this reaction is proposed to be the decarboxylative 1,3-displacement in the chlorinated intermediates.