By ALICE EMILY SMITH and KENNEDY JOSEPH PREVIT~ ORTON. IN his detailed account of p-hydroxydiphenylamine, Calm (Bey., 1883, 16, 2787 ; ibid., 1884, 17, 2431) makes no mention of any attempts to prepare chloroor bromo-derivatives. The only halogen derivatives which have been described up to the present were obtained by us indirectly from s-trichloro-and s-tribromo-1-nitroaminobenzene,
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