Abstract Arenediazonium o-benzenedisulfonimides can be used as efficient reagents in Sonogashira coupling reactions. In this work, reactions were carried out in DMSO under very mild conditions (without copper or phosphanes), and gave rise to arylated alkynes in good to excellent yields (25 examples, average yield 83%). o-Benzenedisulfonimide could be recovered from all the reactions in yields of> 80%, so it could be recycled for the ...
