5 years ago

Decarboxylative Borylation of Aliphatic Esters under Visible-Light Photoredox Conditions

Decarboxylative Borylation of Aliphatic Esters under Visible-Light Photoredox Conditions
Linghua Wang, Pengfei Li, Dawei Hu
The conventional methods for preparing alkyl boronates often necessitate anhydrous and demanding reaction conditions. Herein, a new, operationally simple decarboxylative borylation reaction of readily available aliphatic acid derivatives under additive-free visible-light photoredox conditions in nonanhydrous solvents has been described. Primary and secondary alkyl boronates or tetrafluoroborates with various functional groups were prepared accordingly. A catalytic cycle involving alkyl radical reaction with base-activated diboron species has been proposed.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01181

DOI: 10.1021/acs.orglett.7b01181

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