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Transition-Metal-Free, Visible-Light-Enabled Decarboxylative Borylation of Aryl N -Hydroxyphthalimide Esters

2017; American Chemical Society; Volume: 139; Issue: 22 Linguagem: Inglês

10.1021/jacs.7b03127

1943-2984

Lisa Candish, Michael Teders, Frank Glorius,

Sulfur-Based Synthesis Techniques

Herein, we report a conceptually novel borylation reaction proceeding via a mild photoinduced decarboxylation of redox-activated aromatic carboxylic acids. This work constitutes the first application of cheap and easily prepared N-hydroxyphthalimide esters as aryl radical precursors and does not require the use of expensive transition metals or ligands. The reaction is operationally simple, scalable, and displays broad scope and functional group tolerance.