Kinetics of the Reactions of 4-Nitrochlorobenzene with Substituted Phenols in the Presence of Potassium Carbonate Научная публикация
| Журнал |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Вых. Данные | Год: 2001, Том: 42, Номер: 4, Страницы: 471-473 Страниц : 3 DOI: 10.1023/A:1010561203526 | ||
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Реферат:
The kinetics of 4-nitrochlorobenzene (4-NCB) reactions with substituted phenols in the presence of potassium carbonate in N,N-dimethylacetamide was studied. Depending substituents, the reactivity of the phenols is changed in the series 3-NO2 > 4-Cl > H > 4-Br > 3-CH3 > 3-NH2, which is consistent with the series of their acidity. The reaction rates satisfactorily correlate with the pK(a) values of the corresponding substituted phenols. Based on kinetic data (first-order and zero-order reactions with respect to phenol and 4-NCB. respectively, and the consistency of the reactivity and acidity of substituted phenols), the deprotonation of phenols is considered as the rate-determining step of the overall reaction under the test conditions. A reaction scheme was proposed for the synthesis of diaryl ethers in the presence of potassium carbonate. It involves a heterogeneous step of phenol deprotonation, which takes place on the surface of potassium carbonate, and a homogeneous step of the interaction of potassium phenolates with 4-NCB. Under the reaction conditions, the resulting bicarbonate decomposes with the formation of potassium carbonate and with the release of carbon dioxide and water.
Библиографическая ссылка:
Mil'to V.I.
, Orlov V.Y.
, Mironov G.S.
, Kopeikin V.V.
Kinetics of the Reactions of 4-Nitrochlorobenzene with Substituted Phenols in the Presence of Potassium Carbonate
Kinetics and Catalysis. 2001. V.42. N4. P.471-473. DOI: 10.1023/A:1010561203526 WOS Scopus РИНЦ CAPlus OpenAlex
Kinetics of the Reactions of 4-Nitrochlorobenzene with Substituted Phenols in the Presence of Potassium Carbonate
Kinetics and Catalysis. 2001. V.42. N4. P.471-473. DOI: 10.1023/A:1010561203526 WOS Scopus РИНЦ CAPlus OpenAlex
Оригинальная версия:
Мильто В.И.
, Орлов В.Ю.
, Миронов Г.С.
, Копейкин В.В.
Взаимодействие 4-нитрохлорбензола с замещенными фенолами в присутствии карбоната калия. Кинетические закономерности процесса
Кинетика и катализ. 2001. Т.42. №4. С.523-525. РЖ ВИНИТИ
Взаимодействие 4-нитрохлорбензола с замещенными фенолами в присутствии карбоната калия. Кинетические закономерности процесса
Кинетика и катализ. 2001. Т.42. №4. С.523-525. РЖ ВИНИТИ
Даты:
| Поступила в редакцию: | 9 февр. 2000 г. |
| Опубликована в печати: | 1 июл. 2001 г. |
Идентификаторы БД:
| Web of science: | WOS:000171016500007 |
| Scopus: | 2-s2.0-0037870578 |
| РИНЦ: | 13369952 |
| Chemical Abstracts: | 2001:688400 |
| OpenAlex: | W221247006 |