Hydrochloric Acid → HCID 21421694, compound

Participants

Reaction Steps

6 Parts of 4(4'-hydroxyphenyl)-2,2,6,6-tetramethylpiperidine were dissolved in methanol and treated with excess concentrated hydrochloric acid. The solution was warmed at 50° for 15 minutes and then evaporated to dryness under reduced pressure. The solid residue was crystallised from a chloroform -methanol-petroleum (b.p. 60°-80° C.) mixture to afford 6.0 parts of the desired product melting at > 300° and having the following elemental analysis.

Provenance & Evidence