I found the field of Chemistry very interesting. Saw the article PIFA-Promoted, Solvent-Controlled Selective Functionalization of C(sp(2))-H or C(sp(3))-H: Nitration via C-N Bond Cleavage of CH3NO2, Cyanation, or Oxygenation in Water published in 2019. Recommanded Product: 177-11-7, Reprint Addresses Kim, MH (corresponding author), Gachon Univ, Coll Pharm, Gachon Inst Pharmaceut Sci, 191 Hambakmoeiro, Incheon 21936, South Korea.. The CAS is 177-11-7. Through research, I have a further understanding and discovery of 1,4-Dioxa-8-azaspiro[4.5]decane
A novel nitration (via C(sp(3))-N breaking/C(sp(2))-N formation with CH3NO2) mediated by [bis-(trifluoroacetoxy)iodo]benzene (PIFA) is described. The NO2 transfer from CH3NO2 to the aromatic group of the substrate is possible with careful selection of the solvent, NaX, and oxidant. In addition, the solvent-controlled C(sp(2))-H functionalization can shift to an alpha-C(sp(3))-H functionalization (cyanation or oxygenation) of the alpha-C(sp(3))-H of cyclic amines.
Recommanded Product: 177-11-7. About 1,4-Dioxa-8-azaspiro[4.5]decane, If you have any questions, you can contact Mudithanapelli, C; Dhorma, LP; Kim, MH or concate me.
Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem