Hydrochloric Acid → 4-[N-Cyclopropylmethyl-(6a-methyl-5,6,6a,7,8,9-hexahydro-4H-2-phenalenyl)amino]benzoic acid

Participants

Reaction Conditions

Reaction Steps

A suspension of ethyl 4-[N-cyclopropylmethyl-(6a-methyl-5,6,6a,7,8,9-hexahydro-4H-2-phenalenyl)amino]benzoate (0.063 g) in ethanol (5 ml) was added with 20% aqueous sodium hydroxide (1 ml), and the mixture was stirred overnight at 50° C. The reaction mixture was left to cool and then made acidic with 2 N aqueous hydrochloric acid, and the mixture was extracted with chloroform. The organic layer was washed with saturated brine, and dried over anhydrous sodium sulfate. The organic layer was concentrated under reduced pressure, and the resulting residue was recrystallized from chloroform-n-hexane to obtain the title compound (0.042 g, yield: 71%) as colorless needles (melting point: 234-235° C.).

Provenance & Evidence