Multistep Synthesis of Organic Selenides under Visible Light Irradiation: A Continuous-Flow Approach
作者:Adrián A. Heredia、Silvia M. Soria-Castro、Willber D. Castro-Godoy、Ignacio D. Lemir、Martín López-Vidal、Fabricio R. Bisogno、Juan E. Argüello、Gabriela Oksdath-Mansilla
DOI:10.1021/acs.oprd.9b00548
日期:2020.4.17
The potential application of multistep continuous-flow systems has had a great impact on the syntheses of active pharmaceutical ingredients, natural products, and commodity chemicals. In this report, the highly efficient combination of a chemical reduction and a photochemical Csp2–H activation reaction for selenylation of biologically relevant electron-rich arenes was achieved by means of a continuous-flow
多步连续流系统的潜在应用对活性药物成分,天然产物和日用化学品的合成产生了巨大影响。在此报告中,化学还原和光化学C sp 2的高效组合用于生物相关的富电子芳烃的硒化反应的-H活化反应是通过连续流动过程实现的。首先,通过Rongalite还原了烷基和芳基硒氰酸酯,得到了相应的二硒化物。第二,Se-Se键的光活化导致富电子芳烃的硒化,这两个步骤都从良好的产率到优异的产率。在所有情况下,与间歇反应条件相比,反应时间都缩短了,分离的收率提高了。此外,即使在还原和光氧化转化相结合的情况下,以多步连续流顺序连接两个反应也是可能的。