Noelting, Braun and Thesmar3 was followed. However, in order to avoid the formation of an oil, the bromination product, instead of being poured into water, was filtered off, washed with glacial acetic acid and dried. The base was set free with sodium carbonate solution and recrystallized from dilute methyl alcohol; mp 46". Hydrochloride.-The hydrochloride consists of white crystals which are quite stable, not changing in a year.
