1: 5-(4-nitrobenzyl)-2,2-dimethyl-[1,3]dioxane-4,6-dione With potassium hydride in acetonitrile T=20°C; 0.333333 h; Inert atmosphereGlovebox; 2: 4-acetylamino-2,2,6,6-tetramethylpiperidine-1-oxoammonium in acetonitrile T=24.84°C; Inert atmosphereGlovebox; Thermodynamic data;

1: With phenyl silane; triethylamine in tetrahydrofuran T=20°C; 2 h; Inert atmosphere; 2: With water 0.25 h; Inert atmosphere;