| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000198149 |
| ISSN: | 0100-4042 |
| Authors: | Barbosa, Luiz Claudio de Almeida1 Ferreira, Maria Lucia Demuner, Antonio Jacinto Silva, Antonio Alberto da Pereira, Rita de Cassia |
| Institutions: | 1Universidade Federal de Vicosa, Departamento de Quimica, Vicosa, Minas Gerais. Brasil 2Universidade Federal de Vicosa, Departamento de Fitotecnia, Vicosa, Minas Gerais. Brasil |
| Year: | 2001 |
| Season: | Nov-Dic |
| Volumen: | 24 |
| Number: | 6 |
| Pages: | 751-755 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, descriptivo |
| English abstract | 3,5-Dimethoxybenzylic alcohol was converted into the 2-acetoxy-5-methoxy-3-(pent-1-yl)-1,4-benzoquinone (12), in seven steps, with an overall yield of 14.6%. The natural quinone sorgoleone (1) was isolated from Sorghum bicolor and converted into the corresponding quinone (13) having a saturated side chain. The selective effects of these compounds (1, 12 and 13), at the dose of 5.6 mg of a.i./ g of substrate, on the growth of Cucumis sativus, Lactuca sativa, Desmodium tortuosum, Hyptis suaveolens and Euphorbia heterophylla were evaluated. All three compounds caused some inhibition on the root growth of the test plants (0.0-69.19%) with the aerial parts less affected. The results showed that the triene unit of the sorgoleone side chain is not essential for the phytotoxicity and also the synthetic quinone was as active as the natural product |
| Disciplines: | Química |
| Keyword: | Fitoquímica, Química orgánica, Quinonas, Herbicidas, Fitotoxicidad, Toxicidad, Sorghum bicolor, Cucumis sativus, Desmodium tortuosum |
| Keyword: | Chemistry, Organic chemistry, Phytochemistry, Quinones, Herbicides, Phytotoxicity, Toxicity, Sorghum bicolor, Cucumis sativus, Desmodium tortuosum |
| Full text: | Texto completo (Ver HTML) |
