N-Methylcyclohexylamine → HCID 20319151, compound

Participants

Reaction Steps

26 gm of N-methyl-cyclohexylamine were added to 29 gm of 2-acetylamino-4-tert.butyl-5-chloro-benzyl bromide in 1.5 liters of carbon tetrachloride, and the mixture was refluxed for 2 hours. After cooling, the precipitated N-methyl-cyclohexylamine hydrobromide was filtered off, and the filtrate was evaporated. The residue was taken up in 2 N acetic acid, the solution was extracted with chloroform, and the acid phase was made alkaline with concentrated ammonia, extracted three times with chloroform, and the organic phase was evaporated. After column-chromatographic purification on silicagel with ethyl acetate/chloroform (1:1), the 2-acetylamino-4-tert.butyl-5-chloro-N-cyclohexyl-N-methylbenzylamine thus obtained was crystallized from absolute ethanol and recrystallized from ethanol, whereupon it had a melting point of 174°-175.5°C.

Provenance & Evidence