Ammonia → trans-1-(2-Aminoethyl)-4-[(phenylmethyl)amino]-3-piperidinol

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Reaction Steps

A mixture of 12 parts of trans-3-hydroxy-4-[(phenylmethyl)amino]-1-piperidineacetonitrile and 320 parts of methanol, saturated with ammonia was hydrogenated at normal pressure and at room temperature with 3 parts of Raney-nickel catalyst. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated to dry, yielding 11.2 parts (91.6%) of trans-1-(2-aminoethyl)-4-[(phenylmethyl)amino]-3-piperidinol as a residue (interm. 17).

Provenance & Evidence