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Hydrogen peroxide oxidation of 2-cyanoethanol catalyzed by metal complexesстатья
- Авторы: Veghini D., Shul’pina L.S., Strelkova T.V., Shul’pin G.B.
- Журнал: Petroleum Chemistry
- Том: 46
- Номер: 3
- Год издания: 2006
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 167
- Последняя страница: 170
- DOI: 10.1134/s0965544106030054
- Аннотация: Oxidation of 2-cyanoethanol, a relatively inert primary alcohol, with several systems (both homogeneous and heterogenized) based on transition metal complexes was studied. The oxidation was performed under homogeneous conditions with 35% hydrogen peroxide upon catalysis by the chlorides FeCl3 or OsCl3. The best result was obtained upon the oxidation catalyzed by OsCl3 at 70°C for 3 h in the absence of solvent: the total yield of the corresponding aldehyde and cyanoacetic acid reached 90%, and the turnover number was 1500. The systems [LMnIV(O)3MnIVL]n(X)m-oxalic acid (where L = 1,4,7-trimethyl-1,4,7-triazacyclononane) also catalyze oxidation of 2-cyanoethanol with yields of 50–70% either under homogeneous conditions (X = PF−6, n = 1, and m = 2) or with the use of the catalyst in the heterogenized form (as insoluble heteropoly acid salt), where X = W12SiO4−40, n = 2, and m = 1.
- Добавил в систему: Астахов Григорий Сергеевич