An electrochemical intermolecular dehydrogenative coupling reaction of isothiocyanates with 2‐aminopyridines/amidines was developed. Using n‐Bu4NI as the catalyst and electrolyte, 1,2,4‐thiadiazoles and pyrido‐fused 1,2,4‐thiadiazoles were readily accessed with good to excellent efficiency under the undivided electrolysis conditions. This electrochemical approach obviates the use of external oxidants and transition‐metal catalysts.

Air-and bench-stable N-cyano-N-phenyl arenesulfonamides (NCASs) have been demonstrated to be sulfonylating agents for the synthesis of N-arylsulfonyl benzimidazoles catalyzed by dicobalt octacarbony, Co 2 (CO) 8 , without any bases. This protocol undergoes an intermolecular N-to N-arylsulfonyl transfer process involving the SÀ N bond cleavage of NCASs instead of normal CN group migration via the CÀ N bond scission.[a] Dr.

The electrochemical synthesis of N, N’‐disubstituted benzimidazolones from ureas through an intramolecular anodic dehydrogenative N−H/C−H coupling has been developed. The reaction undergoes under the undivided electrolysis conditions and obviates the need for any catalysts and chemical oxidants.magnified image

An efficient and facile method for the synthesis of amides from aldehydes with isothiocyanates under the reagent-free autoxdiative conditions is established. This protocol showcases the capture of carboxylic acids in...