Cromatografando em coluna com resina de almécega: um projeto para química orgânica experimental Column chromatography with almécega resin: a project for experimental organic chemistry
| Autor: | Gerardo Magela Vieira Júnior, Adonias Almeida Carvalho, Wellington de Abreu Gonzaga, Mariana H. Chaves |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 30, Iss 2, Pp 491-493 (2007) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| DOI: | 10.1590/S0100-40422007000200044 |
| Popis: | The use of natural products to demonstrate the silica gel column chromatography technique is proposed in the present article. It describes the separation of the triterpenes alpha- and beta-amirin from the diol breine and maniladiol, obtained from almécega resin (Protium heptaphyllum March.). The experiment uses an accessible material, was accomplished in 4 h, and can be applied with success an the experimental course of organic chemistry for undergraduate students. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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