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Title: | Síntesis de cumarinas. II. Alquilación de 4-hidroxi-cumarinas. Resultados y mecanismos |
Authors: | González, A. G.; Jorge, Z. D. | Issue Date: | 1983 | Publisher: | Real Sociedad Española de Física y Química | Citation: | Anales de Química 79: pp. 265-269 (1983) | Abstract: | Se estudian reacciones de alquilación en medio básico de la 4-hidroxi-cumarina en función del disolvente, temperatura, grupo alquílico y halógeno, discutiéndose el efecto de las distintas variables. Se identifican trece derivados de la 4-hidroxi-cumarina. Se propone un posible mecanismo para la reacción de alquilación y se discuten sus ventajas con respecto s un planteamiento clásico. The effect of solvent, temperaturd, alkyl group and halide on the alkylation reaction in basic medium of 4-hydroxy-coumarin has been investigated and the effect of different factors is discussed. Thirteen derivatives of 4-hydroxy-coumarin are identified. A possible mechanism for the alkylation, bassed in the formation of ionic pairs, is proposed and its advantages as opposed to a classical approach are discused. |
URI: | http://hdl.handle.net/10261/23810 | ISSN: | 0034-088X |
Appears in Collections: | (IPNA) Artículos |
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ANQ-1983-79-265.pdf | 19,93 MB | Adobe PDF | ![]() View/Open |
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