Synfacts, Table of Contents Synfacts 2025; 21(10): 993DOI: 10.1055/a-2680-9346 Synthesis of Heterocycles Chiral Iminothiazinones (and Iminoselenazinanones) via α,β-Unsaturated Acyl Ammonium Intermediate Authors Contributor(s): Mark A. Reed Geoffrey S. Sinclair Recommend Article Abstract Buy Article(opens in new window)Keywords Keywordsisothiourea catalysis - Michael addition–lactamization - thioureas - selenoureas Full Text