Abstract
We have discovered that KI/NaNO3 and KBr/NaNO3 in AcOH possesse halogenation and nitration properties towards to 9-methylcarbazole in depending on temperature. So KBr/NaNO3 has bromination activity at r.t. but it is nitration agent at 80°C. On the other hand KI/NaNO3 provides the mixture of iod- and nitrocarbazoles at 80°C, and arising temperature up 80°C gives only 3-nitro- and 3,6-dinitro-9-methylcarbazoles. We suppose that weak iodination ability of KI/NaNO3 is due to the fact that the intermediate nitriliodide I-NO2 does not produce I+ but has a tendency to free-radical rupture. It was confirmed by ab initio quantum-chemical computations of nitrilhalogenides X-NO2 (X=F,Cl,Br,I).
Original language | English |
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Title of host publication | Proceedings - KORUS 2000: 4th Korea-Russia International Symposium on Science and Technology |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 222-226 |
Number of pages | 5 |
Volume | 1 |
ISBN (Print) | 0780364864, 9780780364868 |
DOIs | |
Publication status | Published - 2000 |
Event | 4th Korea-Russia International Symposium on Science and Technology, KORUS 2000 - Ulsan, Korea, Republic of Duration: 27 Jun 2000 → 1 Jul 2000 |
Other
Other | 4th Korea-Russia International Symposium on Science and Technology, KORUS 2000 |
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Country | Korea, Republic of |
City | Ulsan |
Period | 27.6.00 → 1.7.00 |
Keywords
- carbazole
- halogenation
- nitration
ASJC Scopus subject areas
- Clinical Biochemistry
- Computer Networks and Communications
- Biotechnology
- Civil and Structural Engineering
- Mechanics of Materials
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Surfaces, Coatings and Films