1,3_oxazinanone derivatives show a range of biological activities such as antıbacterial
[,1], anti-inflamm atory |2| and anti-HlV [3] properties, and are also usefuI compounds for
further synthetic transformations to natura| products [4] or biologically relevant compounds
[5]. Piperidine-2,4-dione derivatives are the key intermediates for synthetic transformations to
6-9ryl4-hydroxypiperidin-2-ones [6] and 4-hydroxypipecolic acids [7] ln this study, diastereoselective electrophile-induced cyclocarbamation of N_protected
benzyl N-(1-pheny1-3-butenyl)carbamates towards an efficient synthesis o{ o-functiona|ized
4-aryl1,3-oxazinan-2-ones and their application in the synthesis of 6-arylpiperidine-2,4 _
diones were repoied [8].