In 2019 PHOSPHORUS SULFUR published article about PHOSPHORUS-NITROGEN COMPOUNDS; DNA INTERACTIONS; STEREOGENIC PROPERTIES; BIOLOGICAL-ACTIVITIES; CYTOTOXIC ACTIVITIES; ELECTROCHEMICAL INVESTIGATIONS; ANTIMICROBIAL ACTIVITIES; CRYSTAL-STRUCTURES; ANTITUBERCULOSIS; MONO in [Elmas, Gamze] Ankara Univ, Dept Chem, TR-06100 Ankara, Turkey in 2019, Cited 41. The Name is 1,4-Dioxa-8-azaspiro[4.5]decane. Through research, I have a further understanding and discovery of 177-11-7. Formula: C7H13NO2
The Cl exchange reaction of hexachlorocyclotriphosphazene, N3P3Cl6 (1), with one equimolar amount of sodium salt of N/O donor type bidentate ligand containing a 2-pyridyl pendant arm (2) afforded, regioselectively, the partly substituted 2-pyridyl(N/O)spirocyclotriphosphazene (3; with a yield of 65%) in THF. The reactions of 3 with excess pyrrolidine, morpholine and 1,4-dioxa-8-azaspiro[4,5]decane (DASD) led to the formation of the tetraamino-2-pyridyl(N/O)spirocyclotriphosphazenes (3a-3c) in high yields. Compound 3 also gave both tetrapiperidino (3d) and gem-bispiperidino (3e) products with excess piperidine. The structures of all the compounds were determined by elemental analyses, ESI-MS, FTIR, HSQC, HMBC and H-1, C-13, and P-31 NMR techniques. The crystal structure of 3c was identified by single crystal X-ray crystallography. Besides, the compound 3e had one stereogenic P atom, and its chirality was verified by P-31 NMR spectroscopy in the presence of (S)-(+)-2,2,2-trifluoro-1-(9′-anthryl)-ethanol (CSA).
Formula: C7H13NO2. About 1,4-Dioxa-8-azaspiro[4.5]decane, If you have any questions, you can contact Elmas, G or concate me.
Reference：
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem