New Selective Grass Herbicides and Their Hydrolytic Properties as Pro-herbicides.
New derivatives of pyridinyloxyphenoxypropionic acid were synthesizd, which have a keto group in their ester-alkyl structures. Some acylmethyl esters, e.g., acetylmethyl ester, hydroxyacetylmethyl ester and diazoacetylmethyl ester, were found to show outstanding herbicidal activity against grass weeds. A study of the hydrolysis rate of esters with regard to their pro-herbicide action is also discussed.
a Bio-organic Chemistry Laboratory, Institute for Fundamental Research, Suntory Research Center, Wakayamadai, Shimamoto-cho, Mishima-gun , Osaka 618 , Japan.
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Hashimoto
a Bio-organic Chemistry Laboratory, Institute for Fundamental Research, Suntory Research Center, Wakayamadai, Shimamoto-cho, Mishima-gun , Osaka 618 , Japan.
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Niwata
a Bio-organic Chemistry Laboratory, Institute for Fundamental Research, Suntory Research Center, Wakayamadai, Shimamoto-cho, Mishima-gun , Osaka 618 , Japan.
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Fukami
a Bio-organic Chemistry Laboratory, Institute for Fundamental Research, Suntory Research Center, Wakayamadai, Shimamoto-cho, Mishima-gun , Osaka 618 , Japan.
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Tanaka