Hv. Patel et al., FACILE SYNTHESIS OF HYDRAZONYL HALIDES BY REACTION OF HYDRAZONES WITHN-HALOSUCCINIMIDE-DIMETHYL SULFIDE COMPLEX, Tetrahedron, 52(2), 1996, pp. 661-668
A new and convenient method is described for the synthesis of hydrazon
yl halides. Hydrazones on treatment with N-chlorosuccinimide-dimethyl
sulfide complex result in the formation of the corresponding hydrazony
l chlorides in good yields. Similarly, treatment of hydrazones with N-
bromosuccinimide-dimethyl sulfide complex gives the corresponding hydr
azonyl bromide under extremely mild conditions.