SEARCH Articles Figures Tables 2.3- didehydro-4-piperidinones 4-Piperidinone, 2,2,6,6-tetramethyl C5H9NO 2-Piperidinone Piperidinone Piperidinone Piperidinone oxidation Piperidinone thiosemicarbazones Piperidinones 2,6-disubstituted Piperidinones chiral Piperidinones, alkylation with Piperidinones, formation Piperidinones, unsaturated