Visible-Light-Mediated Utilization of α-Aminoalkyl Radicals: Addition to Electron-Deficient Alkenes Using Photoredox Catalysts
摘要:
Synthetic use of alpha-aminoalkyl radicals formed by single electron oxidation of amines is quite limited. Here we demonstrate addition of alpha-aminoalkyl radicals to electron-deficient alkenes by visible-light-mediated electron transfer using transition metal polypyridyl complexes as photocatalysts, via a sequential redox pathway.
Visible-Light-Mediated Utilization of α-Aminoalkyl Radicals: Addition to Electron-Deficient Alkenes Using Photoredox Catalysts
摘要:
Synthetic use of alpha-aminoalkyl radicals formed by single electron oxidation of amines is quite limited. Here we demonstrate addition of alpha-aminoalkyl radicals to electron-deficient alkenes by visible-light-mediated electron transfer using transition metal polypyridyl complexes as photocatalysts, via a sequential redox pathway.
作者:Ilic, Aleksandra、Strücker, Benjamin R.、Johnson, Catherine E.、Hainz, Simon、Lomoth, Reiner、Wärnmark, Kenneth
DOI:10.1039/d4sc02612h
日期:——
active substances among others. Visible light-induced generation of nucleophilic α-aminoalkyl radicals as reactive intermediates that can be trapped by electron-deficientalkenes presents an attractive and mild approach to achieve said functionalisation. In this work, [Fe(III)(phtmeimb)2]PF6 (phtmeimb = phenyl(tris(3-methylimidazol-2-ylidene))borate), an N-heterocyclic carbene (NHC) complex based on Earth-abundant
Synthetic use of alpha-aminoalkyl radicals formed by single electron oxidation of amines is quite limited. Here we demonstrate addition of alpha-aminoalkyl radicals to electron-deficient alkenes by visible-light-mediated electron transfer using transition metal polypyridyl complexes as photocatalysts, via a sequential redox pathway.