AbstractA novel and reliable palladium‐catalyzed oxylallylation of alkynone oxime ethers with fluorine‐containing alkenes was accomplished. Using the bulk industrial chemical 3‐bromo‐3,3‐difluoroprop‐1‐ene as the coupling partner, this synthetic methodology offers the first example for the assembly of structurally diverse gem‐difluorinated isoxazole derivatives in moderate to good yields with high atom‐ and step‐economy and excellent functional group compatibility. More importantly, this strategy allows for the direct combination of the isoxazole motifs and gem‐difluoroalkene unit, which is not easy to obtain through a general synthetic strategy.
摘要 完成了炔酮肟醚与含氟烯烃新颖可靠的钯催化羰基烯丙基化反应。该合成方法以大宗工业化学品 3-溴-3,3-二氟丙烯为偶联剂,首次以中等至良好的产率、高原子经济性和步骤经济性以及优异的官能团兼容性组装了结构多样的宝石-二氟异噁唑衍生物。更重要的是,这种策略可以将异噁唑基团和宝石-二氟化烯单元直接结合在一起,这在一般合成策略中是不容易实现的。