Synthesis of Chiral Furopyrrolizidinones through a Key Tandem Cope Elimination/1,3-Dipolar Cycloaddition Reaction of Tricyclic Lactones
作者:Yu-Jang Li、Hsiang-Yu Chuang、Shang-Ming Yeh、Weng-Sang Huang
DOI:10.1002/ejoc.201001515
日期:2011.4
quaternary centers were synthesized in moderate to good yields by treatment of various hexahydro-3,4-dioxa-8a-aza-as-indacen-2-ones with m-CPBA under basic conditions through a tandem Cope elimination/1,3-dipolar cycloaddition reaction sequence, followed by N-O cleavage and lactam ring cyclization.
通过在碱性条件下通过串联处理各种六氢 3,4-dioxa-8a-aza-as-indacen-2-ones 与 m-CPBA,以中等至良好的收率合成了含有连续四元中心的高度官能化的手性呋喃吡咯烷酮Cope消除/1,3-偶极环加成反应序列,然后是NO裂解和内酰胺环环化。