Qiu, Joseph C. published the artcileSelective Oxoammonium Salt Oxidations of Alcohols to Aldehydes and Aldehydes to Carboxylic Acids [Erratum to document cited in CA156:073637], HPLC of Formula: 219543-09-6, the publication is Organic Letters (2012), 14(15), 4034, database is CAplus.
On page S3 of the Supporting Information, describing the General Procedure for the Oxidation of Alcs. to Carboxylic Acids, the oxidant itself and the amount of oxidant were omitted; the correct version of the Supporting Information is given.
Organic Letters 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, HPLC of Formula: 219543-09-6.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem