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Flash vacuum pyrolysis of azo and nitrosophenols: new routes towards hydroxyarylnitrenes and their reactions |
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| Authors: | Yehia A Ibrahim Nouria A Al-AwadiKamini Kual |
| Institution: | Department of Chemistry, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait |
| Abstract: | Flash vacuum pyrolysis of phenylazonaphthols and nitrosonaphthols at 700°C and 0.02 Torr yielded quinoline, isoquinoline, indene and naphthols (and aniline only from the phenylazo derivatives). Similar FVP of p-nitroso and p-phenylazophenol gave pyridine. Also, FVP of phenanthraquinonemonophenylhydrazone and monooxime gave phenathridine and fluorenone. The formation of the heterocyclic system was assumed to involve nitrene and azatropone intermediates. |
| Keywords: | phenylazophenol nitrosophenol phenylazonaphthols nitrosonaphthols phenanthraquinonemonophenylhydrazone phenanthraquinonemonooxime pyridine quinoline isoquinoline indene aniline naphthols phenanthridine fluorenone |
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