Studies of the new herbicide KIH-6127. II. Synthesis and herbicidal activity of 6-acyl pyrimidin-2-yl salicylates and analogues against barnyard grass
1996
Tamaru, M. | Takehi, T. | Masuyama, N. | Hanai, R.
The method reported previously (Part I) was employed to prepare a variety of novel 6-acylsalicylates as key intermediates. 6-Acylpyrimidin-2-yl salicylates (2-acyl-6-[(4,6-disubstituted pyrimidin-2-yl)oxy]benzoate derivatives: Type 1), the closely related phthalide compounds (3-alkyl-7-[-(4,6-dimethoxypyrimidin- 2-yl)oxy]phthalide derivatives: Type 2) and the ketal derivatives of 2-acyl-6-[(4,6-dimethoxypyrimidin-2-yl)oxy]benzoates (Type 3) were synthesized and their herbicidal activities measured. Methyl 2-acetyl-6-[(4,6- dimethoxypyrimidin-2-yl)oxy)benzoate gave excellent control of barnyard grass with a promising profile as a prototype rice herbicide.
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