Intramolecular [2+2] photocycloaddition reactions of diversely substituted N-Boc protected 4-(allylaminomethyl)-2(5H)-furanones resulted in rigid products (53–75%) with three spatially defined positions for further functionalisation.
多种取代的N-Boc保护的4-(
烯丙胺甲基)-
2(5H)-呋喃酮的分子内[2+2]光环加成反应,产生具有三个空间上定义的位置供进一步功能化的高刚性产物(53-75%)。