Gold-Catalyzed Synthesis of 3-Pyrrolidinones and Nitrones from N-Sulfonyl Hydroxylamines via Oxygen-Transfer Redox and 1,3-Sulfonyl Migration
作者:Hyun-Suk Yeom、Eunsu So、Seunghoon Shin
DOI:10.1002/chem.201002863
日期:2011.2.7
Golden touch: Gold‐catalyzed reaction of N‐sulfonyl hydroxylamines with terminal alkyne led to 3‐pyrrolidinones by means of an oygen‐transfer redox reaction. This protocol constitutes a direct method for forming α‐amino carbonyl compounds. In sharp contrast, those with internal alkynes underwent 1,3‐sulfonyl migration leading to 3‐sulfonyl cyclic nitrones.