Add time:08/20/2019         Source:sciencedirect.com

The synthesis of the dihydrochloride salts of (R)-1 and (S)-1 2-(aminomethyl)piperidine is reported starting from either (S) or (R) lysine, respectively. A key step in the synthetic protocol involves the in situ formation of aziridinium 8, which then undergoes an intramolecular ring opening with concomitant piperidinium ring formation, in a stereoselective manner. The route offers a practical synthesis of (R)-1 and (S)-1, and it should make them more accessible for exploration in asymmetric catalysis or as building blocks in pharmaceutical research.

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