Synthesis of CHF<sub>2</sub>-Containing Heterocycles through Oxy-difluoromethylation Using Low-Cost 3D Printed PhotoFlow Reactors
作者:Jinlei Zhang、Elias Selmi-Higashi、Shen Zhang、Alexandre Jean、Stephen T. Hilton、Xacobe C. Cambeiro、Stellios Arseniyadis
DOI:10.1021/acs.orglett.3c03997
日期:2024.4.12
We report here a highly straightforward access to a variety of CHF2-containing heterocycles, including lactones, tetrahydrofurans, tetrahydropyrans, benzolactones, phthalanes, and pyrrolidines, through a visible light-mediated intramolecular oxy-difluoromethylation under continuous flow. The method, which relies on the use of readily available starting materials, low-cost 3D printed photoflow reactors
我们在这里报道了通过连续流动下可见光介导的分子内氧二氟甲基化,高度直接地获得各种含CHF 2的杂环,包括内酯、四氢呋喃、四氢吡喃、苯内酯、酞烷和吡咯烷。该方法依赖于使用容易获得的起始材料、低成本的3D打印光流反应器以及此处用作CHF2自由基前体的二氟甲基三苯基溴化鏻,该方法实用且可扩展,并以中等至优异的产率和优异的性能提供所需的产品。区域选择性和立体选择性。