Isoproterenone hydrochloride → 3-Hydroxy-4-(m-dimethylaminobenzoyloxy)phenyl isopropylaminomethyl ketone

Participants

Reaction Steps

Following the procedure described above in Example 58A, but using 3,4-dihydroxyphenyl isopropylaminomethyl ketone hydrochloride instead of 3,4-dihydroxyphenyl tert-butylaminomethyl ketone hydrochloride and m-dimethylaminobenzoyl chloride instead of isovaleryl chloride, there is obtained 3-hydroxy-4-(m-dimethylaminobenzoyloxy)phenyl isopropylaminomethyl ketone; and by interaction of this base with hydrochloric acid there is obtained the hydrochloride salt. When this hydrochloride is catalytically hydrogenated, using a procedure similar to that described above in Example 2B, there is obtained 3-hydroxy-4-(m-dimethylaminobenzoyloxy)-alpha-(isopropylminomethyl)benzyl alcohol hydrochloride

Provenance & Evidence