An electrochemical sulfonylation of alkynes with sodium sulfinates was achieved for the first time at room temperature. Employing this electrolysis strategy, the reaction occurs efficiently under transition-metal-free, external oxidant-free, and base-free conditions and furnishes diverse alkynyl sulfones in satisfactory yield with broad functional group tolerance.

Electrochemically generated N-radicals are powerful reactive intermediates to construct N-heterocycles. However, these N-centered radicals have never been employed in the trifunctionalization of alkynes. We herein report an unprecedented electrocatalytic triamination...

A straightforward electrosynthesis of carbonyls from aliphatic carboxylic acids has been developed through electrochemical decarboxylative oxygenation. This newly developed transformation features metal free, ubiquitous substrates, good functional group tolerance, and mild conditions. Diverse primary, secondary, as well as tertiary carboxylic acids were amenable to this sequence, furnishing valuable ketones, aldehydes, and amides in good to excellent yields. Moreover, preliminary mechanistic studies indicate that the electrochemically generated carbocation is trapped with water and followed by TEMPO-mediated electrocatalytic oxidation of the alcohol intermediate.

( a 南京林业大学化学工程学院 江苏省林业资源高效加工利用协同创新中心 南京 210037)