680-98-8Relevant articles and documents
REACTION OF KETOCARBOXYLIC ESTERS WITH SULFUR TETRAFLUORIDE IN ANHYDROUS HYDROGEN FLUORIDE
Bloshchitsa, F. A.,Burmakov, A. I.,Kunshenko, B. V.,Alekseeva, L. A.,Bel'ferman, A. L.,et al.
, p. 1260 - 1263 (2007/10/02)
The reaction of ketocarboxylic esters with sulfur tetrafluoride in anhydrous hydrogen fluoride at 20 deg C gives good yields of difluorocarboxylic esters.Hydrolysis of the latter gave the corresponding carboxylic acids.