Hydrochloric Acid → HCID 13083333, compound

Participants

Reaction Steps

The ketone prepared as described above (5.4 g) was mixed with N-methylformamide (18 ml), 98% formic acid (4 ml) and 25% aqueous methylamine (0.6 ml) and the mixture heated under reflux for sixteen hours. The mixture was poured into water and extracted with dichloromethane. The extract was washed, dried and evaporated to give a residue which was heated under reflux with concentrated hydrochloric acid (10 ml) for six hours. The mixture was evaporated to dryness and the residue dried by repeated addition and vacuum evaporation of an industrial methylated spirit/toluene mixture. The solid residue was recrystallised from propan-2-ol to give N-methyl-2-[1-(4-chlorophenyl)-cyclobutyl]-1-methylethylamine hydrochloride (m.p. 193°-194° C.) (Formula I R1, R2 =H; R3 =Me; R4 =H; R5 =4-Cl; R6 =H; R7 =Me; R8 =H).

Provenance & Evidence