Aqueous High-Temperature Chemistry of Carbo- and Heterocycles. 23.Reactions of Pyridine Analogs and Benzopyrroles in Supercritical Water at 460 .degree.C
| Autor: | Alan R. Katritzky, Richard A. Barcock, William N. Olmstead, Michael Siskin |
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| Rok vydání: | 1994 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Formic acid Sodium formate General Chemical Engineering Quinaldine Energy Engineering and Power Technology Medicinal chemistry chemistry.chemical_compound Fuel Technology chemistry Heterocyclic compound Acridine Pyridine Organic chemistry Isoquinoline |
| Zdroj: | Energy & Fuels. 8:990-1001 |
| ISSN: | 1520-5029 0887-0624 |
| Popis: | Eleven nitrogen-containing heterocycles were chosen as fossil fuel model compounds: pyridine, quinoline, 2-methylquinoline (quinaldine), isoquinoline, acridine, phenanthridine, 1,2,3,4-tetrahy-droquinoline, indole, 2-methylindole, 2,3-dimethylindole, and carbazole. They were heated at 460 °C for 7 min and for 1 h in four different sets of conditions: (i) cyclohexane, (ii) water, (iii) aqueous 15 % formic acid, and (iv) aqueous 15 % sodium formate. Aquathermolyses under conditions (ii)-(iv) could thus be compared with purelythermal reactions under condition (i). Pyridine is almost unreactive at 460 °C under both thermolysis and aquathermolysis conditions, although in 15 % aqueous formic acid at 460 °C for 7 min, small quantities of N-alkylpiperidines were observed; however, on extending the reaction time to 1 h, small amounts of C-alkylated pyridines were formed |
| Databáze: | OpenAIRE |
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