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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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