Kaetzel, Nathaniel D. published the artcileOxidation of aldehydes to nitriles with an oxoammonium salt: preparation of piperonylonitrile, Related Products of piperidines, the publication is Organic Syntheses (2020), 294-313, database is CAplus.
The detailed one-step preparation of piperonylonitrile via oxidation of piperonal with Bobbitt’s oxoammonium salt using hexamethyldisilazane as nitrogen source was reported. Application of the methodol. to the synthesis of other nitriles, as well as the use of oxoammonium salts in other oxidative transformations, was also discussed.
Organic Syntheses 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, Related Products of piperidines.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem