57. Entry to 2-aminoprolines via electrochemical decarboxylative amidation of N‑acetylamino malonic acid monoesters

Koleda O., Sadauskis J., Antonenko D., Treijs E. J., Steberis R. D., Suna E. Beilstein J. Org. Chem. 2025, 21, 630–638.
DOI: 10.3762/bjoc.21.50

Abstract

The electrochemical synthesis of 2-aminoprolines based on anodic decarboxylation–intramolecular amidation of readily available N-acetylamino malonic acid monoesters is reported. The decarboxylative amidation under Hofer–Moest reaction conditions proceeds in an undivided cell under constant current conditions in aqueous acetonitrile and provides access to N-sulfonyl, N-benzoyl, and N-Boc-protected 2-aminoproline derivatives.