Rahimi, Alireza published the artcileChemoselective Metal-Free Aerobic Alcohol Oxidation in Lignin, Quality Control of 219543-09-6, the publication is Journal of the American Chemical Society (2013), 135(17), 6415-6418, database is CAplus and MEDLINE.
An efficient organocatalytic method for chemoselective aerobic oxidation of secondary benzylic alcs. within lignin model compounds has been identified. Extension to selective oxidation in natural lignins has also been demonstrated. The optimal catalyst system consists of 4-acetamido-TEMPO (5 mol %; TEMPO = 2,2,6,6-tetramethylpiperidine-N-oxyl) in combination with HNO3 and HCl (10 mol % each). Preliminary studies highlight the prospect of combining this method with a subsequent oxidation step to achieve C-C bond cleavage.
Journal of the American Chemical Society 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