| dc.creator | Barbosa, Luiz Cláudio de Almeida | |
| dc.creator | Maltha, Célia Regina Álvares | |
| dc.creator | Borges, Eduardo Euclides Lima | |
| dc.date | 2019-05-02T13:37:23Z | |
| dc.date | 2019-05-02T13:37:23Z | |
| dc.date | 2002-04 | |
| dc.date.accessioned | 2023-09-27T21:26:07Z | |
| dc.date.available | 2023-09-27T21:26:07Z | |
| dc.identifier | 1678-7064 | |
| dc.identifier | http://dx.doi.org/10.1590/S0100-40422002000200006 | |
| dc.identifier | http://www.locus.ufv.br/handle/123456789/24916 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8960554 | |
| dc.description | The alkene 2,4-dimethyl-8-oxabicyclo[3.2.1]-oct-6-en-3-one (3) was converted to 1,3,10-trimethyl-8-oxabicyclo[5.3.0]-dec-3-ene-2,9-dione (7) and 1,3-dimethyl-8-oxabicyclo[5.3.0]-dec-3-ene-2,9-dione (8) with a 55% overall yield in both cases. Lactones (7) and (8) were converted in two steps to 1,3,4-trimethyl-13-methylene-6-oxatricyclo[8.3.0.0 3,7]-trideca-2,5,12-trione (12) (63%) and 1,3-dimethyl-13-methylene-6-oxatricycle[8.3.0.0 3,7]-trideca-2,5,12-trione (13) (45% from 8). The effect of lactones (7), (8), (12), (13) and the intermediates (5) and (6), at the concentration of 250 mg mL-1, on the growth of Cucumis sativus L. and Sorghum bicolor L. was evaluated. The best results were observed for lactone (13) that caused 100% inhibition on the root growth of C. sativus and lactone (12) that inhibited 90% of the root growth for S. bicolor. | |
| dc.format | pdf | |
| dc.format | application/pdf | |
| dc.language | por | |
| dc.publisher | Química Nova | |
| dc.relation | v. 25, n. 2, p. 203- 208, abr.- mai. 2002 | |
| dc.rights | Open Access | |
| dc.subject | [ 3+ 4] cycloaddition | |
| dc.subject | Lactones | |
| dc.subject | Herbicides | |
| dc.title | Síntese e avaliação da atividade fitotóxica de lactonas derivadas do 2, 4- dimetil- 8- oxabiciclo[ 3. 2. 1]- oct- 6- en- 3- ona | |
| dc.type | Artigo | |
