Lackner, Aaron D. published the artcileSingle-Operation Deracemization of 3H-Indolines and Tetrahydroquinolines Enabled by Phase Separation, Application In Synthesis of 219543-09-6, the publication is Journal of the American Chemical Society (2013), 135(38), 14090-14093, database is CAplus and MEDLINE.
The single-operation deracemization of 3H indolines and tetrahydroquinolines is described. An asym. redox approach was employed, in which a phosphoric acid catalyst, oxidant, and reductant are present in the reaction mixture The simultaneous presence of both oxidant and reductant was enabled by phase separation and resulted in the isolation of highly enantioenriched starting materials in high yields.
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, Application In Synthesis of 219543-09-6.
Referemce:
https://en.wikipedia.org/wiki/Piperidine,
Piperidine | C5H11N – PubChem