Synthesis of 3-halochromones with simple KX halogen sources enabled by <i>in situ</i> halide oxidation
作者:Yan Lin、Jie-Ping Wan、Yunyun Liu
DOI:10.1039/d0nj00825g
日期:——
On the basis of a designated in situ oxidation tactic, the synthesis of 3-halochromones has been realized for the first time by using simple KX (X = Br, I) salts as halogen sources. Instead of the free radical process, the control experiments indicate that the reported reactions proceed through a halogenium intermediate. Compared to the known synthetic methods relying on molecular halogen, haloid acid
根据指定的原位氧化策略,通过使用简单的KX(X = Br,I)盐作为卤素源,首次实现了3-卤代色酮的合成。对照实验表明,所报道的反应不是通过自由基过程而是通过卤代中间体进行。与依赖于分子卤素,卤代酸或N-卤代琥珀酰亚胺作为卤素源的已知合成方法相比,本方法由于其较高的原子经济性并且对操作者更友好而具有吸引力,因此为制备提供了实用的补充方法有用的卤色酮化合物。