Ring-Opening of 4-Isoxazolines: Competitive Formation of Enamino Derivatives and a,b-Enones
作者:Ugo Chiacchio、Franco Casuscelli、Angelo Liguori、Antonio Rescifina、Giovanni Romeo、Giovanni Sindona、Nicola Uccella
DOI:10.3987/com-92-6223
日期:——
Ring-opening of 3-substituted 4-isoxazolines, proceeding through the intermediate isoxazolinium salts, follows two competing reaction pathways leading to alpha,beta-enones and enamines respectively. The rearrangement courses can be controlled as a function of substitution pattern and experimental conditions.