1,4-Dihydroxy-2,2,6,6-tetramethylpiperidine → HCID 10934026, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 17.05 g (0.10 mol) of 1-oxyl-4-hydroxy-2,2,6,6-tetramethylpiperidine and 100 mL (0.99 mol) of cyclohexene under a nitrogen atmosphere is heated at 70° C. for 72 hours. The reaction mixture is filtered to remove 1,4-dihydroxy-2,2,6,6-tetramethylpiperidine and the filtrate is washed with 5 w/v % ascorbic acid (2×50 mL) and distilled water (2×50 mL). The organic phase is dried over anhydrous sodium sulfate and the volatiles are removed in vacuo. The residue is recrystallized from acetonitrile to give 4.44 g (36% yield) of a white solid melting at 65-66.5° C.

Provenance & Evidence