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Synthesis and herbicidal activity of optically active methyl 3-hydroxy-4 oxyphenoxypentanoates


, : Synthesis and herbicidal activity of optically active methyl 3-hydroxy-4 oxyphenoxypentanoates. Journal of Agricultural and Food Chemistry 38(1): 269-273

Extensive field testing has shown methyl 3-hydroxy-4-(4-((5-(trifluoromethyl)-2-pyridinyl)oxy)phenoxy)pentanoate to be a highly active post-em. herbicide. All four diastereomers were prepared separately, and their individual herbicidal activities were evaluated. The 2 diastereomers of R configuration at C-4 were found to be approx. twice as active as the racemic material and 8-fold more active than the corresponding S isomers.

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Silva P.A., 1985: The rutter scale for completion by teachers factor structure and relationships with cognitive abilities and family adversity for a sample of new zealand children. A large sample of 7-yr-old children (n = 90) was rated by teachers using the Rutter Child Scale B, a 26-item questionnaire covering a variety of behavioral problems. A factor analysis of the data revealed 3 main factors of interest, identified as...

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Farrington, J.; Bebbington, A. J., 1993: From research to innovation: getting the most from interaction with NGOs in FSRE. This paper draws preliminary findings from a study across Africa, Asia, and Latin America of the potential for closer links between NGOs and government agricultural research and extension services in the development and dissemination of agricultur...

Cucchi, A., 1994: Bladder contractility and idiopathic detrusor instability in males. Thirty males (mean age 54 +- 13 years) with an "idiopathic" detrusor instability and fully compensated bladders (no post-micturition residuals) were assessed urodynamically at a short distance of time (3 months, on average) from the begi...

Tome, Davorin, 2003: Prezimovanje velikega skurha Numenius arquata, pribe Vanellus vanellus in liske Fulica atra na Kolansken blatu (Otok Pag, Hrvaska). In the years 1998 - 2002, the wintering Eurasian Curlews Numenius arquata, Northern Lapwings Vanellus vanellus and Common Coots Fulica atra were counted at Kolansko blato (Pag Island, Croatia). From 15 to 31 Eurasian Curlews, 0 to 120 Northern Lap...

Dunn M.F.; Karr A.L., 1990: Isolation of an extracellular polysaccharide eps depolymerase produced by bradyrhizobium japonicum. Bradyrhizobium japonicum is capable of producing an acidic, high molecular weight, extracellular polysaccharide (EPS). An enzyme exhibiting EPS depolymerase activity was detected in cell lysates of B. japonicum strain 2143. The depolymerase was ac...

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Araki, E.; Haag, B. L, I I. I.; Kahn, C. R., 1994: Cloning of the mouse insulin receptor substrate-1 (IRS-1) gene and complete sequence of mouse IRS-1. The mouse IRS-1 gene has been cloned and its structure determined (EMBL/GenBank accession number L24563). Mouse IRS-1 differs from rat IRS-1 by the absence of the potential C-terminal nucleotide binding site. Otherwise, the predicted IRS-1 protein...