Kelly, Christopher B. published the artcileOxidation of α-Trifluoromethyl Alcohols Using a Recyclable Oxoammonium Salt, Quality Control of 219543-09-6, the publication is Journal of Organic Chemistry (2012), 77(18), 8131-8141, database is CAplus and MEDLINE.
A simple, mild method for the oxidation of α-trifluoromethyl alcs. to trifluoromethyl ketones (TFMKs) using the oxoammonium salt 4-acetylamino-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate is described. Under basic conditions, oxidation proceeds rapidly and affords good to excellent yields of TFMKs, without concomitant formation of the hydrate. The byproduct of the oxidation, 4-acetylamino-2,2,6,6-tetramethyl-1-piperidinyloxy (1c), is easily recovered and can be conveniently reoxidized to regenerate the oxoammonium salt.
Journal of Organic Chemistry published new progress about 219543-09-6. 219543-09-6 belongs to piperidines, auxiliary class Piperidine,Fluoride,Salt,Amine,Amide, name is 4-Acetamido-2,2,6,6-tetramethyl-1-oxopiperidinium Tetrafluoroborate, and the molecular formula is C11H21BF4N2O2, Quality Control of 219543-09-6.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem