N-iodosuccinimide is a five-membered cyclic dicarboximide compound having an iodo substituent on the nitrogen atom. It is a dicarboximide and a pyrrolidinone. It is functionally related to a succinimide.
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Chemical transformations. DmS=dimethylsulfoxide, NBS=N-bromosuccinimide, NIS=N-iodosuccinimide, PPA=poly-phosphoric acid.