R. Ravi et al., NUCLEOPHILIC SUBSTITUTIONS ON 3-CHRORO-4-FLUORONITROBENZENE, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 36(4), 1997, pp. 347-348
Nucleophilic substitutions on 3-chloro-4-fluoronitrobenzene 5 with pip
erazines occur on the fluorine rather than on the chlorine atom as rep
orted, to yield 3-chloro-4-piperazinylnitrobenzenes 8 and 9.