Niobium(V) Chloride as Catalyst in Diels-Alder Reaction of Furan Ring
According to the relevant literature, the Diels-Alder reaction of furan without a catalyst can last several weeks and shows a low yield due to the diene's low reactivity. The use of Lewis acid catalysts or high pressures is described as an effective method for improving the reaction yields. Thi...
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| Veröffentlicht in: | Journal of the Brazilian Chemical Society 2014-05, Vol.25 (5), p.882-886 |
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| creator | Santos, Deborah A. dos Rodrigues, Ludmila R. Arpini, Bruno H. Lacerda Junior, Valdemar Greco, Sandro J. Santos, Reginaldo B. dos Cunha Neto, Álvaro Romão, Wanderson Castro, Eustaquio V. R. de |
| description | According to the relevant literature, the Diels-Alder reaction of furan without a catalyst can last several weeks and shows a low yield due to the diene's low reactivity. The use of Lewis acid catalysts or high pressures is described as an effective method for improving the reaction yields. This paper describes our recent study on the use of niobium pentachloride as the catalyst in Diels-Alder reactions between furan and several reactive dienophiles, among which methyl acrylate showed good yields, especially at lower temperatures. Other dienophiles have shown lower yields because of problems such as byproduct formation and the high reversibility of the reaction. |
| doi_str_mv | 10.5935/0103-5053.20140052 |
| format | Article |
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| title | Niobium(V) Chloride as Catalyst in Diels-Alder Reaction of Furan Ring |
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