41  US 6,391,949 B2  42  EXAMPLE  33  EXAMPLE 40  EXAMPLE  34  EXAMPLE  41  EXAMPLE  35  EXAMPLE  42  EXAMPLE  36  EXAMPLE  43  EXAMPLE  44  EXAMPLE  37  EXAMPLE  38  EXAMPLE  44A  EXAMPLE  45  EXAMPLE  39  Reaction of  N,N’,N"  ,N"’-Tetrakis{2,4-bis[N-(1-oxyl- 2,2,6,6-tetramethylpiperidin-4-yl]butylamino ]-s› triazin-6-y 1 }-3,3 ’-ethy lenediiminodipropylamine  with Cyclohexanol  A  mixture of  N,N’,N"  ,N"’-tetrakis{2,4-bis[N-(1-oxyl-2,2,  6,6-tetramethylpiperidin-4-yl ]buty lamina ]-s-triazin-6-yl }- Aqueous hydrogen peroxide is added to a mixture of  bis(l-oxyl-2,2,6,6-tetramethylpiperidin-4-yl) sebacate and 65  ferrous chloride tetrahydrate in isopropanol according to the  procedure of Example 25.  Reaction of Bis(l-oxyl-2,2,6,6-tetramethylpiperidin- 4-yl) Sebacate with Isopropanol  Tributyltin hydride is added dropwise to a solution of  2-iodoethanol and excess bis(l-oxyl-_2,2,6,6- tetramethylpiperidin-4-yl) sebacate in chlorobenzene. The 55  crude reaction mixture is passed through silica gel with  heptane and then heptane/ethyl acetate to afford the title  compound.  The title compound is prepared by the reaction of the  compound prepared in Example 16A with excess methyl  hexadecanoate and a catalytic amount of lithium amide in  xylene.  1-( 4-Hexadecanoyloxy-2,2,6,6-tetramethylpiperidin› l-y loxy )-2-hexadecanoy loxy-2-methylpropane  A mixture of the compound prepared in Example 16A,  methyl hexadecanoate and lithium amide is heated at reflux  in xylene, Methanol is distilled from the reaction mixture.  The reaction mixture is quenched with dilute mineral acid,  and the organic layer is washed with water and dried over  anhydrous magnesium sulfate. The xylene solution is evapo› rated at reduced pressure to afford the title compound.  l-(2-Hydroxy-2-methylpropoxy)-4- hexadecanoyloxy-2,2,6,6-tetramethylpiperidine  Reaction of 4-Benzoyloxy-l-oxyl-2,2,6,6- tetramethylpiperidine with Trimethylene Glycol  Aqueous hydrogen peroxide is added to a mixture of  4-benzoyloxy-l-oxyl-2,2,6,6-tetramethylpiperidine and fer› rous chloride tetrahydrate in trimethylene glycol according  to the procedure of Example 25.  Bis[  1-(2-hydroxyethoxy )-2,2,6,6- tetramethy lpiperidin-4-y l] Sebacate  Aqueous hydrogen peroxide is added to a mixture of  4-benzoyloxy-l-oxyl-2,2,6,6-tetramethylpiperidine and fer› rous chloride tetrahydrate in propylene glycol according to  the procedure of Example 25.  Aqueous hydrogen peroxide is added to a mixture of  4-hydroxy-l-oxyl-2,2,6,6-tetramethylpiperidine and ferrous  chloride tetrahydrate in 2-ethyl-1-hexanol according to the  procedure of Example 25.  Reaction of 4-Hydroxy-l-oxyl-2,2,6,6- tetramethylpiperidine with 2-Ethyl-1-hexanol  Reaction of 4-Benzoyloxy-l-oxyl-2,2,6,6- tetramethylpiperidine with Propylene Glycol  The title compound is prepared by heating the compound  prepared in Example 34 in a solution of potassium hydrox› ide in methanol.  4-Hydroxy-l-(2-hydroxycyclohexyloxy)-2,2,6,6- tetramethylpiperidine  Aqueous hydrogen peroxide is added to a mixture of  l-oxyl-2,2,6,6-tetramethylpiperidin-4-one and ferrous chlo› ride tetrahydrate in glycerol according to the procedure of  Example 25.  Reaction of l-Oxyl-2,2,6,6-tetramethylpiperidin-4- one with Glycerol  Aqueous hydrogen peroxide is added to a mixture of  4-hexyloxy-l-oxyl-2,2,6,6-tetramethylpiperidine and fer› rous chloride tetrahydrate in pinacol according to the pro› cedure of Example 25.  Reaction of 4-Hexyloxy-l-oxyl-2,2,6,6- tetramethylpiperidine with Pinacol  Aqueous hydrogen peroxide is added to a mixture of  4-benzoyloxy-l-oxyl-2,2,6,6-tetramethylpiperidine and fer› rous chloride tetrahydrate in 1,4-butanediol according to the  procedure of Example 25.  Reaction of 4-Benzoyloxy-l-oxyl-2,2,6,6- tetramethylpiperidine with 1,4-Butanediol  Reaction of 4-0ctadecanoyloxy-l-oxyl-2,2,6,6- piperidine with tert-Amyl Alcohol  Aqueous hydrogen peroxide is added to a mixture of  4-octadecanoyloxy-1-oxy 1-2,2,6,6-tetramethy lpiperidine  and ferrous chloride in tert-amyl alcohol according to the  procedure of Example 25.  4-Benzoyloxy-l-(2-hydroxycyclohexyloxy)-2,2,6,6- tetramethylpiperidine  Tributyltin hydride is added dropwise to a solution of  2-bromocyclohexanol and excess 4-benzoyloxy-l-oxyl-2,2,  6,6-tetramethylpiperidine in chlorobenzene. The mixture is  heated to facilitate reaction. The crude reaction mixture is  passed through silica gel with heptane and then heptane/  ethyl acetate to afford the title compound as a mixture os  cis/trans isomers. 