Zhao Lingzi, Liu Feipeng, Zhuang Yan, Shen Mengyang, Xue Jing, Wang Xuchao, Zhang Yuting, Rong Zi-Qiang
Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE), Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
Chem Sci. 2024 May 7;15(23):8888-8895. doi: 10.1039/d4sc01149j. eCollection 2024 Jun 12.
Saturated heterocycles, which incorporate S and O heteroatoms, serve as fundamental frameworks in a diverse array of natural products, bioactive compounds, and pharmaceuticals. Herein, we describe a unique cobalt-catalyzed approach integrated with a desymmetrization strategy, facilitating precise and enantioselective remote hydroalkylation of unactivated heterocyclic alkenes. This method delivers hydroalkylation products with high yields and excellent stereoselectivity, representing good efficiency in constructing alkyl chiral centers at remote C3-positions within five-membered S/O-heterocycles. Notably, the broad scope and good functional group tolerance of this asymmetric C(sp)-C(sp) coupling enhance its applicability.
含有硫和氧杂原子的饱和杂环是多种天然产物、生物活性化合物和药物中的基本骨架。在此,我们描述了一种独特的钴催化方法,该方法与去对称化策略相结合,可实现未活化杂环烯烃的精确对映选择性远程氢烷基化反应。该方法能以高收率和优异的立体选择性提供氢烷基化产物,在五元含硫/氧杂环的远程C3位构建烷基手性中心方面表现出良好的效率。值得注意的是,这种不对称C(sp)-C(sp)偶联反应的广泛底物范围和良好的官能团耐受性提高了其适用性。