- 作者: 楊嘉喜;林佑聰
- 作者服務機構: Department of Chemistry, Chung Yuan Christian University, Chungli, Taiwan 320, R.O.C.
- 中文摘要: The reactions of N-phenylhydroxylamine in the presence of dry hydrogen chloride to form azoxybenzene, aniline, 2-chloroaniline and 4-chloroaniline were studied. The molar ratio of the azoxybenzene and aniline obtained was very close to one. A similar reaction was also observed for 2-methyl- and 4-methyl-N-phenylhydroxylamine. A reasonable explanation is that N-phenylhydroxylamine undergoes a self oxidation reduction reaction to give aniline and nitrosobenzene, and the latter subsequently reacts with N-phenylhydroxylamine to give azoxybenzene. The reaction of N-phenylhydroxylamine, catalyzed by trifluoroacetic acid to yield azoxybenzene, was previously studied by Okamoto rt al. and was suspected to undergo a similar reaction. We repeated the reaction and evidence for the same self oxidation reduction reaction was found. A mechanism involving the anilenium ion is proposed to account for this reaction.
- 英文摘要: --
- 中文關鍵字: N-Arylhydroxylamine; self oxidation reduction; anilenium ion; nitrenium ion.
- 英文關鍵字: N-Arylhydroxylamine; self oxidation reduction; anilenium ion; nitrenium ion.