I found the field of Chemistry very interesting. Saw the article Copper-Catalyzed Dihydroquinolinone Synthesis from isocyanides and O-Benzoyl Hydroxylamines published in 2019. Name: 1,4-Dioxa-8-azaspiro[4.5]decane, Reprint Addresses Chen, YC; Wei, Y (corresponding author), Army Med Univ, Coll Pharm, Chongqing 400038, Peoples R China.; Wei, Y (corresponding author), Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China.. 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 copper-catalyzed protocol has been realized for the rapid assembly of dihydroquinolinones from readily accessible isocyanides and O-benzoyl hydroxylamines. The reactions (10 mol % of CuOAc, 10 mol % of dppe, 3 equiv of PhONa, 30 degrees C) deliver various structurally interesting dihydroquinolinones in moderate to good yields (up to 76%). The reactions may proceed in a cascade manner involving isocyanide insertion into the N-O bond, Mumm-type rearrangement, and intramolecular nucleophilic substitution.
About 1,4-Dioxa-8-azaspiro[4.5]decane, If you have any questions, you can contact Yang, Z; Jiang, K; Chen, YC; Wei, Y or concate me.. Name: 1,4-Dioxa-8-azaspiro[4.5]decane
Reference:
Piperidine – Wikipedia,
Piperidine | C5H7510N – PubChem