Catalyst-Free Trans-Selective Oxyiodination and Oxychlorination of Alkynes Employing N–X (Halogen) Reagents
作者:Jiaqiong Sun、Yunliang Guo、Jiuli Xia、Guangfan Zheng、Qian Zhang
DOI:10.3390/molecules28217420
日期:——
β-halogenated enol esters and ethers are versatile building blocks in organic synthesis, which has attracted increasing attention. In this study, we report the facile trans-oxyiodination and oxychlorination of alkynes, leading to the direct construction of versatile halogenated enol esters and ethers. This transformation features an easy operation, optimal atomic economy, a strong functional group
β-卤代烯醇酯和醚是有机合成中的通用结构单元,引起了越来越多的关注。在这项研究中,我们报道了炔烃的简单反式氧化碘化和氧氯化,从而直接构建了多功能的卤代烯醇酯和醚。该转化具有操作简单、原子经济性好、官能团耐受性强、底物范围广、反式选择性优异等特点。采用高亲电子双功能 N-X(卤素)试剂是实现广泛反应通用性的关键。据我们所知,这种转变代表了第一个采用 N-X(卤素)试剂作为氧化源和卤化源的卤氧化系统。