Hydrochloric Acid → HCID 70553944, compound

Participants

Reaction Steps

3,4-Dihydroxyphenyl 1-(tert-butylamino)ethyl ketone hydrochloride (8 g.) was reacted with 18 ml. of pivalyl chloride in 35 ml. of trifluoroacetic acid, the resulting ester-amine salt was converted to the ester-amine, and the ester-amine was treated with hydrochloric acid to yield 10.5 g. of 3,4-bis-(pivalyloxy)phenyl 1-(tert-butylamino)ethyl ketone hydrochloride, m.p. 200°-202° C. (uncorr.). This ketone was catalytically hydrogenated in the presence of palladium-on-charcoal catalyst to yield 3,4-bis(pivalyloxy)-alpha-[1-(tert-butylamino)ethyl]-benzyl alcohol hydrochloride as a white crystalline solid which melted at 205°-207° C. (uncorr.).

Provenance & Evidence