tert-Butyl (1-isopropylpiperidin-4-yl)carbamate → 1-(Propan-2-yl)piperidin-4-amine

Participants

Reaction Steps

To 4.8 g (1-Isopropyl-piperidin-4-yl)-carbamic acid tert-butyl ester in 15 ml methanol, 20 ml methanolic hydrochloric acid (8M) were added and the mixture was stirred for 16 h. Removal of the solvent under reduced pressure, followed by removal of residual volatiles by twice coevaporating with toluene, gave the product. Yield: 5.42 g. MS (ES+): m/e=143.

Provenance & Evidence