Photocarboxylation of Benzylic C-H bonds

URN to cite this document:: urn:nbn:de:bvb:355-epub-404717
DOI to cite this document:: 10.5283/epub.40471

Meng, Qing-Yuan

; Schirmer, Tobias ; Berger, Anna Lucia ; Donabauer, Karsten ; König, Burkhard

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Date of publication of this fulltext: 09 Jul 2019 08:59

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Abstract

The carboxylation of sp(3)-hybridized C-H bonds with CO2 is a challenging transformation. Herein, we report a visible-light-mediated carboxylation of benzylic C-H bonds with CO2 into 2-arylpropionic acids under metal-free conditions. Photo-oxidized triisopropylsilanethiol was used as the hydrogen atom transfer catalyst to afford a benzylic radical that accepts an electron from the reduced form of ...