Isopropylamine → Ethyl 4-[(propan-2-yl)amino]piperidine-1-carboxylate

Participants

Reaction Steps

A mixture of 100 parts of ethyl 4-oxo-1-piperidinecarboxylate, 42 parts of 2-propanamine, 2 parts of a solution of thiophene in methanol 4% and 400 parts of methanol was hydrogenated at normal pressure and at room temperature with 5 parts of palladium-on-charcoal catalyst 10%. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated, yielding 118 parts (94%) of ethyl 4-[(1-methylethyl)amino]-1-piperidinecarboxylate (1).

Provenance & Evidence