An unprecedented deoxygenative gem-difluorovinylation of aliphatic alcohols with α-trifluoromethyl alkenes is achieved under photocatalytic conditions. Inexpensive Ph3P acts as an efficient O-atom transfer reagent to facilitate the deoxygenation of alcohols...

Herein, we report a DMAP-catalysed Curtius rearrangement and intramolecular cyclisation cascade reaction of 2-substituted aryl carboxylic acids with organic azides for the first time. This protocol features simple operation, broad...

An unprecedented DMAP-catalysed amidation of aryl and alkyl carboxylic acids with organo-cyanamides has been developed. Unlike the use of N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS) as an electrophilic cyanating reagent, an unusual desulfonylation/decynation reaction...