Synthesis of novel tricyclic and tetracyclic sultone scaffolds via intramolecular 1,3-dipolar cycloaddition reactions
作者:Mehdi Ghandi、Abuzar Taheri、Abolfazl Hasani Bozcheloei、Alireza Abbasi、Reza Kia
DOI:10.1016/j.tet.2012.02.053
日期:2012.5
The initially prepared 2-formylphenyl-(E)-2-phenylethenesulfonates from the condensation of (E)-2-phenylethenesulfonyl chloride with 2-hydroxybenzaldehyde derivatives underwent intramolecular [3+2] cycloaddition with methyl or phenylhydroxylamine, sarcosine, and l-proline, affording the corresponding novel isoxazolidine, pyrrolidine and pyrrolizidine-annulated γ,δ-benzo-δ-sultones, respectively, in
由(E)-2-苯基乙烯磺酰氯与2-羟基苯甲醛衍生物的缩合反应制得的2-甲酰基苯基-(E)-2-苯基乙烯磺酸酯与甲基或苯基羟胺,肌氨酸和1-脯氨酸进行分子内[3 + 2]环加成反应,分别以良好的收率得到相应的新型异恶唑烷,吡咯烷和吡咯嗪环化的γ,δ-苯并-δ-磺内酯。通过单晶X射线衍射进行分子结构的明确分配。