Dimethylamine, hydrochloride → HCID 18357454, compound

Participants

Reaction Steps

In one portion, a total of 2.0 g of 2-(1,2-benzisoxazol-3-yl)-benzaldehyde was added to a solution of 8.0 g of dimethylamine hydrochloride in 70 ml of methanol. The reaction mixture was stirred at room temperature for 16 h, after which 2.0 g of sodium borohydride were added. After stirring at room temperature for another 24 h, the solids were filtered off, and the residue was washed with dichloromethane. The combined filtrate was dried over magnesium sulphate and evaporated to dryness under reduced pressure. The resulting solid was purified by chromatography on silica gel, eluting with ethyl acetate, affording 0.89 g. This solid was dissolved in ethyl acetate, and triturated with a solution of hydrogen chloride in methanol. This solution was evaporated to dryness under reduced pressure and the residue was crystallised from ethanol/diethyl ether/hexane, yielding 0.54 g of pure 2-(1,2-benzisoxazol-3-yl)-N,N-dimethyl-benzenemethanamine hydrochloride, melting at 190° C.

Provenance & Evidence