Transition-metal-free, one-pot synthesis of benzoxaboroles from <i>o</i>-bromobenzaldehydes <i>via</i> visible-light-promoted borylation
作者:Jinghan Luo、Xingxing Jia、Yanjun Hu、Jianchao Chen、Tiemin Sun
DOI:10.1039/d1ob01853a
日期:——
A novel and simple one-pot stepwise method to synthesize benzoxaboroles was demonstrated. This step-by-step synthetic method includes photocatalytic boronization with phenothiazine as a photocatalyst and sequential water-induced reduction in the presence of bis(pinacolato)diboron. A series of o-bromobenzaldehydes were well-tolerated under the standard conditions. In addition, this method has been successfully
展示了一种新颖且简单的一锅法逐步合成苯并恶硼烷的方法。这种分步合成方法包括使用吩噻嗪作为光催化剂的光催化硼化和在双(频哪醇)二硼存在下的连续水诱导还原。一系列邻溴苯甲醛在标准条件下具有良好的耐受性。此外,该方法已成功应用于抗结核候选药物GSK 3036656和抗真菌药物tavaborole的合成。