Transition-Metal-Free, Visible-Light-Enabled Decarboxylative Borylation of Aryl <i>N</i>-Hydroxyphthalimide Esters
作者:Lisa Candish、Michael Teders、Frank Glorius
DOI:10.1021/jacs.7b03127
日期:2017.6.7
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-hydroxyphthalimideesters as aryl radical precursors and does not require the use of expensive transition metals or ligands. The reaction is operationally simple, scalable
Organocatalytic Amidation and Esterification of Aldehydes with Activating Reagents by a Cross-Coupling Strategy
作者:Bin Tan、Narihiro Toda、Carlos F. Barbas
DOI:10.1002/anie.201205921
日期:2012.12.7
Formation on demand: An organocatalytic cross‐coupling reaction of aldehydes with N‐hydroxyimides, hexafluoroisopropyl alcohol, and sulfonimides has been developed. The resulting active intermediates can be directly converted into amides or esters in one pot. This simple method makes use of readily available starting materials, and the newly discovered activatingreagents should find broad application