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Pesticide Science | 1996

Dimethoxypyrimidines as Novel Herbicides. Part 2. Synthesis and Herbicidal Activity of O-Pyrimidinylsalicylates and Analogues

Yukio Nezu; Masahiro Miyazaki; Kazuhiko Sugiyama; Nobuhide Wada; Ikuo Kajiwara; Takeshige Miyazawa

A new series of the O-pyrimidinylsalicylates was synthesized and their herbicidal activity was examined. Some of these compounds showed very strong herbicidal activity under pre- and post-emergent treatment conditions against various kinds of grass and broadleaf weeds. Among these compounds, O-(4, 6-dimethoxypyrimidin-2-yl) salicylic acid and its methyl ester were found to exhibit the highest activity. The herbicidal symptoms observed after the treatments included early cessation of plant growth followed by chlorosis, necrosis and plant death. The symptoms were similar to those caused by sulfonylureas and imidazolinones, which inhibit branched-chain amino acid biosynthesis.


Archive | 1989

Alkanoic acid derivatives and herbicidal compositions

Koichiro Kaku; Nobuhide Wada; Akira Takeuchi; Yasufumi Toyokawa; Takeshige Miyazawa; Ryo Yoshida; Kazuhiko Sugiyama


Archive | 1987

Picolinic acid derivatives and herbicidal compositions

Masahiro Shigematsu; Hideo Ohi; Shoji Kusano; Takeshige Miyazawa; Satoru Takahashi; Yasuhumi Toyokawa; Ikuo Kajiwara


Archive | 1988

2-phenoxypyrimidine derivative and herbicidal composition

Nobuhide Wada; Yoshihiro Saito; Shoji Kusano; Yasufumi Toyokawa; Takeshige Miyazawa; Satoru Takahashi; Takayoshi Takehi


Archive | 1987

2-Phenoxypyrimidine derivative and herbicidal compositions

Nobuhide Wada; Yoshihiro Saito; Shoji Kusano; Yasuhumi Toyokawa; Takeshige Miyazawa; Ikuo Kajiwara; Satoru Takahashi


Archive | 1986

Pyrimidine derivatives and herbicidal uses thereof

Yukio Nezu; Kazuhiko Sugiyama; Shoji Kusano; Yasufumi Toyokawa; Takeshige Miyazawa; Ikuo Kajiwara


Archive | 1988

2-Phenoxypyrimidine derivatives and herbicidal composition

Nobuhide Wada; Yoshihiro Saito; Shoji Kusano; Yasufumi Toyokawa; Takeshige Miyazawa; Satoru Takahashi; Takayoshi Takehi


Archive | 1993

Condensed heterocyclic derivatives and herbicides

Sumio Yokota; Masafumi Matsuzawa; Nobuyuki Ohba; Toshihiro Nagata; Shigehiko Tachikawa; Takeshige Miyazawa; Katsutada Yanagisawa


Archive | 1993

Condensed heterocyclic derivative and weedkiller

Sumio Yokota; Masafumi Matsuzawa; Nobuyuki Ohba; Toshihiro Nagata; Shigehiko Tachikawa; Takeshige Miyazawa; Katsutada Yanagisawa


Archive | 1986

2-(4',6'-di-substituted pyrimidine-2'-yl)oxy- or thio-benzoic acid

Yukio Nezu; Kazuhiko Sugiyama; Shoji Kusano; Yasufumi Toyokawa; Takeshige Miyazawa; Ikuo Kajiwara

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