Studies on The Application of The Paternò‐Büchi Reaction to The Synthesis of Novel Fluorinated Scaffolds
作者:Mario Andrés Gomez Fernandez、Corentin Lefebvre、Alexander Sudau、Pierre Genix、Jean‐Pierre Vors、Manabu Abe、Norbert Hoffmann
DOI:10.1002/chem.202102621
日期:2021.11.11
New scaffolds obtained by Paternò-Büchi reactions between heteroaromatic, trifluoromethylphenyl ketone and electron rich or fluorinated alkenes to give corresponding oxetanes. The uncommon regioselectivity with the fluorinated alkenes is explained by the relative stabilities of 1,4-diradical intermediates of this Paternò-Büchi reaction. A metathesis (photo-Wittig reaction) yields amide isosteres.
通过在杂芳烃、三氟甲基苯基酮和富电子或氟化烯烃之间的 Paternò-Büchi 反应获得的新支架,得到相应的氧杂环丁烷。这种 Paternò-Büchi 反应的 1,4-双自由基中间体的相对稳定性可以解释氟化烯烃的罕见区域选择性。复分解(photo-Wittig 反应)产生酰胺等排体。