A metal‐ and oxidant‐free electrochemical method for synthesizing 1,2,3‐thiadiazoles by inserting element sulfur into N‐tosyl hydrazones is reported. This electrochemical transformation engages electrons as reagents to achieve redox processes, and avoid excess oxidants. The cyclic voltammograms are examined to explore the mechanism of this electrolysis reaction.magnified image

Methanol plays a crucial role in organic synthesis as a green C1 source. Herein, the concise α-methoxymeth- ylation and aminomethylation of propiophenones is achieved via electrochemistry with methanol as both...

A transition-metal-free efficient method for the preparation of 1,2,3-trisubstituted benzenes from bispropargyl alcohols and 1,3-dicarbonyl compounds has been developed. The reaction of bispropargyl alcohol with 1,3-dicarbonyl compound proceeds through [3,3]-rearrangement, 6π-electrocyclization, and unexpected Csp 3 −Csp 2 regioselective σ-bond cleavage processes.

1,3‐Di‐ and 1,2,3‐trisubstituted benzenes are prepared by TfOH‐promoted selective Csp3‐Csp2 σ‐bond cleavage of 1,3‐dicarbonyl compounds in one‐pot.