Hydrochloric Acid → HCID 21698574, compound

Participants

Reaction Steps

To a stirred soution of 3-ethyl-3,5,5-trimethylcyclohexylamine (3.20 g, a 6:4 mixture of axial:equatorial ethyl diastereomers), triethylamine (2.13 g) and 4-dimethylaminopyridine (DMAP) (0.12 g) in dichloromethane (50 ml) was added, in a rapid dropwise manner, a solution of 2-hydroxy-3-nitrobenzoyl chloride (3.83 g) in dichloromethane (10 ml). After the addition was complete, the reaction mixture was stirred at room temperature for 12 hours, then poured into 1N HCl (250 ml). The organic layer was separated, and the aqueous layer washed with dichloromethane (50 ml). The organic phases were combined, dried (MgSO4) and the solvent evaporated to give a yellow solid (5.70 g). Recrystallization from methanol gave an analytical sample (m.p. 125-128° C.). The 13C NMR of this material showed it to be a mixture of diastereomers in an approximate ratio of 6:4.

Provenance & Evidence