Microwave-induced 1,3-dipolar intramolecular cycloadditions of N-substituted oximes, nitrones, and azomethine ylides for the chiral synthesis of functionalized nitrogen heterocycles
作者:Qian Cheng、Wen Zhang、Yoshimichi Tagami、Takayuki Oritani
DOI:10.1039/b006000n
日期:——
Highly stereoselective intramolecular cycloadditions of unsaturated N-substituted oximes, nitrones, and azomethine ylides on the surface of silica gel without a solvent, which have been conducted under microwave irradiation, to produce functionalized tricyclic isoxazolidines fused with a pyrroline or piperidine ring in good yields, are presented.
在硅胶表面,在不使用溶剂的情况下,在微波辐射下,对不饱和N-取代肟、硝酮和氮丙啶亚基进行高度立体选择性分子内环加成,从而以高收率生产出与吡咯啉或哌啶环融合的官能化三环异噁唑烷。