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Dive into the research topics where Tadashi Ohsumi is active.

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Featured researches published by Tadashi Ohsumi.


Journal of Pesticide Science | 1987

Insecticidal Activity of Pyrethroids Containing a Heterocycle against Musca domestica and Their Structure-Activity Relationship

Tadashi Ohsumi; Chiyozo Takayama; Takao Motoki; Toshihiko Yano; Masachika Hirano; Nobushige Itaya

種々のヘテロ環をアルコール成分に有するピレスロイドを合成し, イエバエに対する殺虫活性を測定した. その結果, 活性は, 導入されるヘテロ環の種類に著しく影響を受けることが明らかとなった. これらピレスロイドの安定コンフォメーションをMNDO法を用いて計算し, 2-ベンジル-4-フリルメチル2,2-ジメチル-3-(2,2-ジクロロビニル) シクロプロパンカルボキシレートを対照分子として立体類似性 (RMS値) を算出した. RMS値および逆相液体クロマトグラフィーを用いて測定したlogk′値は殺虫活性と相関性を示し, ピレスロイドの殺虫活性における立体形状と疎水性の重要性が示唆された.


Archive | 1985

Pyrazolecarboxamide derivatives, process for their preparation, and bactericides containing them as effective ingredients

Sumio Nishida; Tadashi Ohsumi; Kazunori Tsushima; Noritada Matsuo; Kiyoto Maeda; Satoru Inoue


Archive | 1988

Benzoylurea derivative and its production and use

Noriyasu Sakamoto; Tatsuya Mori; Tadashi Ohsumi; Toshihiko Yano; Izumi Fujimoto; Yoji Takada


Archive | 1988

Heterocyclic derivatives, method for their preparation and fungicides containing them as active ingredients

Tadashi Ohsumi; Kazunori Tsushima; Sumio Nishida; Kiyoto Maeda; Tadashi Ooishi; Noritada Matsuo


Archive | 1988

Substituted carboxylic acid derivatives, processes for preparing the same and agricultural or horticultural fungicides containing the same

Tatsuya Mori; Tadashi Ohsumi; Shigeo Nakamura; Kiyoto Maeda; Sumio Nishida; Hirotaka Takano


Archive | 1985

Pyrazolecarboxamide derivative and fungicide containing it as active ingredient

Sumio Nishida; Tadashi Ohsumi; Kazunori Tsushima; Noritada Matsuo; Kiyoto Maeda; Satoru Inoue


Archive | 1987

Thiazoles and pyrazoles as fungicides

Tadashi Ohsumi; Kazunori Tsushima; Sumio Nishida; Kiyoto Maeda; Tadashi Ooishi; Noritada Matsuo


Archive | 1998

Plant disease-controlling agent

Junichi Sato; Tadashi Ohsumi; Hiroko Yamazaki; Norio Kimura; Hirotaka Takano; Makoto Fujimura; Noriko Ohsawa


Archive | 1988

Fungicidal substituted carboxylic acid derivatives

Tatsuya Mori; Tadashi Ohsumi; Shigeo Nakamura; Kiyoto Maeda; Sumio Nishida; Hirotaka Takano


Archive | 1978

Benzyl pyrrolyl methyl carboxylate insecticides and acaricides

Tadashi Ohsumi; Nobushige Itaya; Masachika Hirano

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