Archiv der Pharmazie p. 304 - 306 (1984)
Update date:2022-08-11
Topics:
Herdeis, Claus
Dimmerling, Anna
Piperidine-2,5-dione (4) is prepared by catalytic hydrogenation of 5-hydroxy-2-pyridone (3).Ring opening of the lactam 4 with concentrated hydrochloric acid yields the hydrochloride of δ-aminolaevulinic acid (2).
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(1930)