Facile synthesis of hydrazonyl halides by reaction of hydrazones with N-halosuccinimide-dimethyl sulfide complex

Article abstract of DOI:10.1016/0040-4020(95)00916-7

A new and convenient method is described for the synthesis of hydrazonyl halides. Hydrazones on treatment with N-chlorosuccinimide-dimethyl sulfide complex result in the formation of the corresponding hydrazonyl chlorides in good yields. Similarly, treatment of hydrazones with N-bromosuccinimide-dimethyl sulfide complex gives the corresponding hydrazonyl bromide under extremely mild conditions.