Heterophanes are widely found in natural products and drug molecules. Herein, an efficient method for the construction of [2,5]-furanophanes with different ring types and ring sizes was developed. This method is carried out with furan-free precursor through intramolecular carbene-mediated alkynyl migration and tandem cyclization strategy. In addition, a series of tetrafuran structures can be obtained by oxidative
杂音广泛存在于
天然产物和药物分子中。在此,开发了一种构建具有不同环类型和环尺寸的 [2,5]-
呋喃甲烷的有效方法。该方法是通过分子内卡宾介导的炔基迁移和串联环化策略,使用不含
呋喃的前体进行的。此外,产物通过氧化偶联可得到一系列四
呋喃结构。