A highly efficient Pd-C catalytic hydrogenation of pyridine nucleus under mild conditions

A synergistic Pd-C catalytic hydrogenation of 4-pyridinecarboxamides straightforward to 4-piperidinecarboxamide hydrochlorides was developed in the presence of ClCH2CHCl2. It provided a novel strategy for highly efficient hydrogenation of pyridine nuclear by using low-cost Pd-C catalyst under mild conditions.

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