Kim, Myeong Jin published the artcileOxoammonium salt-mediated oxidative nitriles synthesis from aldehydes with ammonium acetate, Quality Control of 219543-09-6, the publication is Tetrahedron Letters (2017), 58(50), 4695-4698, database is CAplus.
An efficient and scalable route for the synthesis of nitriles I [R = n-heptyl, cyclohexyl, 4-MeOC6H4, 2-thienyl, etc.] was developed by oxoammonium salt (4-acetamido-2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate) mediated oxidative conversion of aldehydes with ammonium acetate (NH4OAc). A variety of aliphatic aldehydes as well as benzaldehydes were converted into the corresponding nitriles in high yields. The nitroxyl radical which was the reduced species of the used oxoammonium salt was recovered by simple acid-base extraction for the recycling.
Tetrahedron 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, Quality Control of 219543-09-6.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem