83996-83-2Relevant academic research and scientific papers
Optional site selectivity in the metalation of o- and p-anisidine through matching of reagents with neighboring groups
Maggi, Raimondo,Schlosser, Manfred
, p. 5430 - 5434 (2007/10/03)
N-Protected o- and p-anisidines (2- and 4-methoxyanilines) undergo a hydrogen/metal exchange at the position adjacent to either the oxygen or nitrogen atom depending on what organometalic base is employed. These synthetically useful findings support previous views about neighboring group/reagent interactions.
SUBSTITUENT EFFECTS ON HYDROLYTIC STABILITY AND HERBICIDAL ACTIVITY OF 3-ARYLIMIDAZOLIDINE-2,4-DIONES
Cegan, Alexandr,Vecera, Miroslav
, p. 1521 - 1528 (2007/10/02)
Twenty-one derivatives of imidazolidine-2,4-dione have been prepared by reactions of substituted amino acids with aryl isocyanates in aqueous medium.Pre- and post-emergent herbicidal activities of all the compounds have been tested, and stability of five derivatives has been followed in aqueous medium within the pH range from 7.6 to 13.0.The highest pre-emergent herbicidal activity has been found with the derivatives XI-XVI which inhibit the growth of most indicator plants at the doses of 1.6 kg/ha.The derivatives studied are relatively stable in aqueous medium, the hydrolysis half-life of the compound XI being 9 days at pH 8.
