The kinetics of the reaction of 2,4-dinitro-1-chlorobenzene with various aromatic bases to give 2,4-dinitrodiphenylamines have been studied in alcohol, alcohol–acetonitrile, alcohol–dimethylformamide, and alcohol – dimethyl sulfoxide mixtures. No base catalysis has been observed under these conditions. ρ Values have been computed. In the reaction of o-chloro- and p-chloronitrobenzene with hydroxide in 50% dimethyl sulfoxide, the reactivity of both the isomers has been found to be identical, in contradiction to the previously reported observations.
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